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The Bishop score is a five-component summary of a digital cervical examination (dilation, effacement, station, consistency, and position) proposed by Edward Bishop in 1964 to judge how ready the cervix is for induction. Obstetricians, midwives, and labor and delivery nurses record it before and during cervical ripening and induction of labor. This page covers how to document a Bishop score with its version, examiner, indication, and plan, with a fictional sample.
The clinician who performs the digital cervical examination: an obstetrician or maternal-fetal medicine physician, an obstetric resident, a family physician who attends births, a nurse-midwife or midwife, or a labor and delivery nurse within unit scope; no license, training requirement, or publisher qualification level applies, and the examiner is named because the findings are examiner-dependent
Labor and delivery nurses and the oncoming team choosing the next step, obstetric and midwifery colleagues, anesthesia and neonatal teams reading the induction plan, maternity-unit quality and audit staff, coders reading the indication, and expert reviewers in induction-related claims
4 to 10 chart lines (indication and gestational age, examination time and examiner, five findings with units, version and total, membranes and method-specific facts, reading and plan, reassessment) · 1 to 3 minutes to record after the examination
Examiner-rated cervical readiness score (five findings from one digital examination converted to points and summed; classic total 0 to 13, with length-based modified versions and a three-component simplified version that have different ranges)
Before cervical ripening or induction of labor at any gestation at which induction is planned, on admission for induction, after each ripening interval or device removal, and whenever a change in cervical findings would change the method; carried into the induction order set, the labor record, and perinatal quality audits
Edward Bishop (1964), a public domain method with modified (Burnett 1966; Calder 1974, length-based) and simplified (Laughon 2011) versions; ACOG Clinical Practice Guideline No. 9 (2025), SOGC 432 (2023), NICE NG207 (2021), and RANZCOG and state guidelines set differing favorable conventions; required by no law; described here for documentation, no scoring table reproduced
The Bishop score is a summary of one digital cervical examination. Edward H. Bishop, an obstetrician at Pennsylvania Hospital in Philadelphia, published Pelvic Scoring for Elective Induction in Obstetrics and Gynecology in August 1964 (volume 24, pages 266 to 268), building on his 1955 paper on elective induction; his population was multiparous women at term being considered for elective induction, and he regarded a total above 8 as marking a patient suitable for it. Five findings from the examination are each converted to points and summed: dilation (how open the cervix is, in centimeters), effacement (how much the cervix has thinned, as a percentage), station (where the presenting part sits relative to the ischial spines, on Bishop's scale of thirds from minus 3 to plus 3), consistency (firm through soft), and position (posterior through anterior). In the classic architecture the first three carry up to 3 points each and the last two up to 2 each, for a total of 0 to 13; the breakpoints belong to the published table and are described here only conceptually. The word modified hides a family rather than one instrument. Burnett published an early alternative preinduction score in 1966; the Calder lineage of the 1970s, embedded in UK practice and NICE guidance, replaces percentage effacement with cervical length in centimeters and changes the maximum; Queensland and Western Australian guidelines use a length-based Modified Bishop Score; a widely circulated variant adds or subtracts points for parity, pre-eclampsia, post-dates pregnancy, and prelabor rupture of membranes, which no ACOG, SOGC, NICE, or RANZCOG instrument does; and the simplified Bishop score of Laughon and colleagues (2011), derived from 5,610 nulliparous term inductions in the Consortium on Safe Labor, keeps only dilation, effacement, and station for a range of 0 to 9. Two unit traps follow. A cervix charted as 2 cm long is speaking the length-based dialect, not the percentage one, and a station read on the centimeter scale of minus 5 to plus 5 that ACOG later adopted is not a Bishop third.
The load-bearing fact for documentation is that the total means nothing without its version and its convention. ACOG's Clinical Practice Guideline No. 9, Cervical Ripening in Pregnancy (July 2025), which replaced Practice Bulletin 107 of 2009, states that there is no universally accepted definition of an unfavorable cervix, notes that studies have used Bishop thresholds ranging from 3 to 8 to define who benefits from ripening before oxytocin, and calls the score the most frequently used method of judging cervical readiness; the older Practice Bulletin language (6 or less unfavorable, above 8 comparable to spontaneous labor) is history, not current ACOG wording. SOGC Guideline No. 432b (2023) directs cervical ripening when the modified Bishop score is below 7 and No. 432c moves to amniotomy and oxytocin at 7 or more; NICE NG207 (2021) steers method choice at 6 or less against more than 6 and describes 8 or more as a cervix generally ready to dilate; Australian state guidelines set their own conventions on a length-based modified score; and the StatPearls entry that many clinicians read first says plainly that the precise criteria for a favorable or unfavorable cervix have not been established. So the defensible entry records the five findings in the units actually assessed, the version that converted them to points, the total with its maximum, the examiner and time, the indication, and the plan, and attributes any favorable or unfavorable label to the guideline or unit pathway that sets it. Two limits belong in the same entry. The score does not decide whether to induce: the indication does, and no guideline withholds an indicated induction because the cervix is unfavorable. And it was not built or validated as a cesarean-risk predictor: Bishop designed it to select multiparous women for elective induction, Kolkman and colleagues (2013) pooled 40 studies of 13,757 women and found it a poor predictor of the outcome of induced labor at term, and Laughon and colleagues found that a low score identifies who will not deliver vaginally only about 30 percent of the time. The score also has neighbors it must not absorb: the general cervical examination note, which records the same findings without a total; transvaginal ultrasound cervical length, a separate modality with its own evidence; the induction indication and consent record, which owns the decision to induce; the labor progress record once labor is established; and the Apgar score, its obstetric sibling on this site, which describes the newborn after birth rather than the cervix before induction.
Obstetricians, maternal-fetal medicine physicians, obstetric residents, family physicians who attend births, and nurse-midwives and midwives perform the pre-induction cervical examination and chart the score in the United States, Canada, and Australia; labor and delivery nurses perform and chart serial cervical examinations within unit scope and are often the examiner of record after a ripening interval. Those entries are read by the charge nurse and the oncoming team choosing the next step, by anesthesia and neonatal teams reading the induction plan, by maternity-unit quality staff auditing whether a documented score preceded induction (Queensland proposes exactly that audit measure, and the WA Country Health Service requires the current Bishop score, written consent, the indication, and the intended method on every induction request), by coders who take the indication rather than the score, and by expert reviewers in induction-related claims, who read the cervical findings beside the indication, the consent, and the plan. The Bishop page owns one job: the five findings, the version, the total, the examiner, the indication, and the plan, with the reassessment. Neighbors take over from there. A general cervical examination note carries the same findings when no induction decision is pending; transvaginal cervical length belongs to preterm-birth screening and to research comparisons, not to the Bishop field; the induction consent record owns whether to induce; the labor record and partograph own progress once labor is established; a maternal-fetal medicine opinion on the indication or the method belongs in the consultation report; a move from a birth center or a low-risk unit to a hospital for ripening travels in the transfer of care summary; the induction course is summarized in the discharge summary; the visit at which induction was scheduled closes with an after-visit summary; and a uterine tachysystole event or a retained device that the organization treats as a safety event goes in the incident report.
No law, payer, or professional body prescribes a Bishop score note format; what exists is Bishop's 1964 method, a family of modified and simplified versions, guidelines whose favorable conventions differ, and unit pathways and state policies that expect a documented score before induction. What survives review is an entry that states the indication and gestational age first, names the examiner and time, records the five findings in the units actually assessed, names the version and computes the total against its maximum, carries the membrane status and the method-specific facts the score cannot encode, attributes any favorable or unfavorable reading to its source and ties the plan to the whole clinical picture, and repeats the examination on the method's schedule with both sets of findings kept. Each element below carries the pitfall that most often undermines it.
Indication, gestational age, and the decision to induce. Open with why induction is happening and at what gestation, with the dating method, parity, and the date the decision was made: late-term pregnancy at 41 weeks 3 days by a 9-week ultrasound, gestational hypertension at 37 weeks, elective induction at 39 weeks after shared decision-making, or a medically indicated late-preterm delivery under ACOG Committee Opinion 831. The indication decides whether induction is appropriate; the cervical findings decide only how to begin. Every major guideline (ACOG's 2025 ripening guideline, SOGC 432, RANZCOG C-Obs 22, NICE NG207) uses the score to choose or offer ripening after the indication is established, and none makes an unfavorable cervix a reason to withhold an indicated induction. If the indication and the consent discussion live in a separate induction consent note, reference it by date rather than restating it. Pitfall: "Bishop 3, induction deferred" or "Bishop 9, induction scheduled" with no indication in sight, so the score reads as the reason to induce or to wait.
Examination time, examiner, and consent to examine. Record the date and time of the digital examination, the examiner's name and role, and that the patient agreed to the examination. The findings are examiner-dependent: Faltin-Traub and colleagues (2004) found two examiners agreed exactly on the total in 28 percent of 156 women at term and within one point in 66 percent, with weighted kappa from 0.35 to 0.69 across pairs, and Dupuis and colleagues (2005) found station errors in 50 to 88 percent of residents' and 36 to 80 percent of attendings' assessments on a birth simulator. That is why the name belongs beside the number. Serial examinations by different clinicians are separate entries with their own times; none is averaged, corrected, or overwritten, and when two examiners disagree across a threshold that would change management, a repeat or senior examination is documented as a third entry rather than as a resolution of the first two. Pitfall: An unattributed score in a flowsheet, or the attending's later number silently replacing the midwife's admission examination.
The five findings, in the units actually assessed. Chart the components before the total, each in the unit it was assessed in: dilation in centimeters; effacement as a percentage or, if your unit assesses cervical length, in centimeters, saying which; station on Bishop's scale of thirds (minus 3 to plus 3) or on the centimeter scale of minus 5 to plus 5, saying which; consistency in plain words; position in plain words. Never convert silently. A cervix 2 cm long is a length-based finding that a length-based modified score can use, not a percentage that the classic score can use; a station of plus 1 on the centimeter scale is not a Bishop third, and Dupuis showed station is the component most often misjudged. Digital cervical length is also not transvaginal ultrasound length, which is a separate measurement with better reproducibility (Garcia-Simon and colleagues, 2015) and its own evidence base, so label the source of any length. Pitfall: "Cervix 2 cm long" scored as if it were a percentage of effacement, or a station read on the centimeter scale entered as a Bishop third, so the total is wrong before it is written.
Version named and total computed. Write which version converted the findings to points and the total against its maximum: classic Bishop, five components, 0 to 13; a length-based modified score, named for the guideline or author that defines it (Calder; the Queensland Modified Bishop Score; a unit's own build), with its own maximum; the simplified Bishop score of Laughon and colleagues, three components, 0 to 9; or a variant with parity or complication modifiers, named as such because no national guideline instrument uses them. The version is what makes the number portable: a 5 under one architecture and a 5 under another are different facts, and an EHR field labeled Bishop score that accepts both without a version tag is ambiguous by design. Where the flowsheet stores the total, put the version in the comment or the note, and trend only within one version. Pitfall: "Bishop 5" with no version, or a length-based modified total charted against a classic admission baseline as if the cervix had changed.
Membranes, fetal status, and method-specific facts. Record what the score cannot encode and the method depends on: membrane status, presentation and estimated fetal weight, the fetal heart rate tracing category before any agent, prior cesarean or other uterine surgery, placental location, cerclage status and its removal, relevant allergies, and any contraindication to a prostaglandin, a balloon, or amniotomy. ACOG's 2025 guideline marks a uterine scar as a contraindication in its ripening-methods table, RANZCOG treats previous uterine surgery as a separate method-selection factor, and NICE names a previous cesarean birth among the circumstances in which a mechanical method is considered; none of that is visible in the total, which is why two patients with identical scores can have different acceptable options. Australian and UK guidance expects a normal tracing before prostaglandin or oxytocin, so the tracing category belongs in the entry. Pitfall: A prior cesarean recorded on the admission history but absent from the ripening entry, so the choice of a balloon over a prostaglandin cannot be reconstructed from the note.
Reading under a named convention, and the plan. Write favorable or unfavorable with the source of the threshold: "unfavorable under the unit's induction pathway (classic total of 6 or less)," "below 7, cervical ripening indicated under SOGC 432b," or "6 or less, pharmacologic or mechanical ripening options offered under NICE NG207." Do not attribute a threshold to ACOG, whose 2025 guideline declines to set one. Then state the plan as a decision about the whole picture: the method chosen (a balloon, dinoprostone, misoprostol, a combination, amniotomy and oxytocin, or expectant management), the reasons beyond the score (parity, urgency of the indication, uterine scar, membrane status, the patient's preferences, the setting), the counseling on methods, benefits, and risks that ACOG requires once ripening is deemed necessary, and the consent. Queensland's pathway, which allows amniotomy in selected patients with a low score when there is a clinical reason to avoid ripening, is the reminder that the number is an input, not the order. Pitfall: "Bishop 4, misoprostol" as if the number chose the drug, or "unfavorable (below 6)" asserted as a universal rule with no guideline or pathway named.
Reassessment on the method's schedule, and the record. Repeat the examination when the method's protocol says so (after balloon expulsion or at the device's dwell limit, at the interval set for a dinoprostone insert or a misoprostol dose, and whenever a change in findings would change management), and document it as a new entry with its own time, examiner, five findings, version, and total. Describe the change with both sets of findings visible (1 of 13 at 19:40 by the midwife; 7 of 13 at 04:05 by the attending) so that improvement is not reduced to an unexplained jump, and say what the new findings led to. No universal recheck interval exists: NICE asks for reassessment as induction progresses, Queensland's balloon pathway sets reassessment after device removal, and the WA Country Health Service asks the clinician to notify the unit if a pre-induction score changes enough that ripening is no longer needed. Close with where the entry lives (the induction section of the labor record, with the total in the flowsheet field and the version in its comment) and that the patient was told what the score describes. Pitfall: "Bishop improved from 2 to 8" with the baseline findings gone, or a flowsheet field that mixes a classic admission total with a modified reassessment total.
BISHOP SCORE DOCUMENTATION BLOCK (findings, version, indication, plan) Date: [ ] Setting: [hospital L&D / birth center / outpatient ripening] Examiner (name, role): [ ] Examination time: [ ] Patient agreed to exam: [yes] Indication for induction: [ ] Gestational age: [ ] weeks [ ] days by [dating] Parity: [ ] Decision to induce and consent: [date; induction consent note referenced] Findings, in the units assessed: Dilation: [ ] cm Effacement: [ ] percent OR cervical length: [ ] cm (state which) Station: [ ] on [thirds, -3 to +3 / centimeters, -5 to +5] (state which) Consistency: [firm / medium / soft] Position: [posterior / mid / anterior] Version: [classic Bishop, 0 to 13 / length-based modified, named / simplified Laughon, 0 to 9 / named local variant] Total: [ ] of [maximum] Membranes: [intact / ruptured, time] Presentation: [ ] Estimated fetal weight: [ ] Fetal heart rate tracing before any agent: [category / normal] Prior cesarean or uterine surgery: [none / details] Placental site: [ ] Cerclage: [none / removed, date] Allergies and method contraindications: [ ] Reading: [favorable / unfavorable] under [guideline or unit pathway that sets the threshold; ACOG 2025 sets none] Plan: [balloon / dinoprostone / misoprostol / combination / amniotomy and oxytocin / expectant] Reasons beyond the score: [parity, urgency, scar, membranes, preference, setting] Counseling and consent for the method: [date, time] Reassessment trigger: [balloon expulsion / dwell limit / dose interval / change in findings] Next examination by: [ ] Prior examination(s): [time, examiner, findings, version, total; both entries kept] Record: [induction section of labor record; flowsheet total with version in comment; patient told what the score describes] Clinician signature / credentials: Date:
Free to use and share, no signup. The PDF includes a one-page cheat sheet with element-by-element pitfalls and a pre-sign checklist; the DOCX is the blank documentation block, ready to adapt. Neither reproduces a scoring table or a guideline table.
Scenario: a US community hospital labor and delivery unit, where a nulliparous patient at 41 weeks 3 days is admitted for late-term induction; the nurse-midwife examines and charts the five findings, names the version, reads the total under the unit's convention, records the method-specific facts, and places a transcervical balloon with consent, and the attending re-examines after expulsion and documents the change with both examinations kept. All details are fictional.
Patient: T.W., 29, G1P0, 41 weeks 3 days · Setting: Community hospital labor and delivery unit; admission for late-term induction · Clinician: M. Okafor, CNM (examining clinician); R. Castellano, MD (attending) · Note date: 09/16/2026
Indication and decision to induce: Late-term pregnancy at 41 weeks 3 days by a 9-week ultrasound; first pregnancy, no prior uterine surgery. Induction was recommended at the 41-week office visit on 09/14/2026 under the practice's late-term pathway, which follows ACOG's guidance on late-term and postterm pregnancy; T.W. chose induction over continued surveillance, and the discussion of alternatives, benefits, and risks is in the induction consent note dated 09/14/2026. Membrane sweep declined. The indication, not the cervical findings, decided that induction would proceed; the findings below decided only how it would begin. Admitted 09/16/2026 at 19:00 for cervical ripening.
Examination: Digital cervical examination at 19:40 on 09/16/2026 by M. Okafor, CNM, with T.W.'s verbal agreement, after a 20-minute admission tracing. Findings in the units assessed: dilation 1 cm; effacement 30 percent (assessed as a percentage; this unit does not chart cervical length); station -3 on Bishop's scale of thirds (the unit scores station in thirds for the Bishop entry and charts the centimeter scale separately once labor is established); consistency firm; position posterior. Cephalic presentation confirmed by Leopold maneuvers and bedside ultrasound; membranes intact; estimated fetal weight about 3,600 g.
Version, total, and reading: Version: classic Bishop, five components, range 0 to 13. Total 1 of 13, computed by the examiner and confirmed by the attending. Reading: unfavorable under this unit's induction pathway, which treats a classic total of 6 or less as unfavorable for the purpose of offering cervical ripening; the threshold is the unit's convention, recorded as such because ACOG's 2025 guideline states that no universally accepted definition of an unfavorable cervix exists. The total is not a prediction of delivery mode and did not enter the decision to induce.
Membranes, fetal status, and method-specific facts: Membranes intact. Fetal heart rate tracing Category I over 20 minutes before any agent (baseline 135, moderate variability, accelerations present, no decelerations); no contractions. No prior cesarean or uterine surgery; placenta fundal-anterior on the 20-week anatomy ultrasound; no cerclage; no known drug allergies; group B streptococcus culture negative on 09/02/2026; blood pressure 118/74, no hypertensive disorder; BMI 31. No contraindication to a transcervical balloon, dinoprostone, or misoprostol identified.
Plan tied to the whole picture, with consent: Options discussed by M. Okafor, CNM, with T.W. at 20:00: transcervical balloon, vaginal dinoprostone insert, oral or vaginal misoprostol, and a balloon with misoprostol together; benefits, risks, and expected timelines of each reviewed, consistent with ACOG's 2025 guideline, which treats pharmacologic, mechanical, and combination methods as reasonable choices. T.W. preferred to start with a mechanical method and to stay mobile. Plan: transcervical balloon placed at 20:15 by M. Okafor, CNM; continuous tracing for 30 minutes after placement, then monitoring per the unit's balloon protocol; oxytocin to follow balloon expulsion or removal at the 12-hour dwell limit; amniotomy deferred until the presenting part is well applied. Reasons recorded beyond the score: unfavorable cervix under the unit convention, nulliparity, intact membranes, no uterine scar, no urgency in the indication, and the patient's stated preference. R. Castellano, MD, reviewed the findings and the plan at 20:05 and agreed. Written consent for the balloon signed at 20:10 and filed with the induction consent note.
Reassessment after ripening: Balloon expelled spontaneously at 03:50 on 09/17/2026. Repeat digital examination at 04:05 on 09/17/2026 by R. Castellano, MD, with T.W.'s agreement: dilation 3 cm; effacement 60 percent; station -2 on the scale of thirds; consistency medium; position mid. Version classic Bishop; total 7 of 13. Change from the admission examination: 1 of 13 at 19:40 on 09/16/2026 (Okafor) to 7 of 13 at 04:05 on 09/17/2026 (Castellano); both examinations stand as separate entries, the difference reflects ripening observed by two examiners, and no value was corrected. Favorable under the unit convention (above 6). Tracing Category I; irregular contractions every 6 to 10 minutes. Plan: oxytocin by the unit's low-dose protocol started at 04:30; amniotomy when the head is well applied; continuous electronic fetal monitoring; epidural on request.
Record and communication: Both examinations are entered in the induction section of the labor record; the flowsheet Bishop score field carries each total with the version (classic, 0 to 13) in its comment, and the five findings sit in the cervical examination rows with the examiner and time. The indication is documented as late-term pregnancy at 41 weeks 3 days, from which coding assigns the diagnosis (O48.0), never from the score; no Joint Commission PC-01 question arises at 41 weeks, and no payer asked for a Bishop value. T.W. was told at each examination what the findings and the total describe, that the total does not predict how she will deliver, and what the next step depends on; documented in the patient communication note.
This sample is fictional and for educational purposes. It does not describe a real patient or record; the findings, scores, times, dates, and details are invented to show documentation structure and are not clinical guidance. No scoring table or guideline table is reproduced.
Writing these after every session? BastionGPT drafts complete notes from bullets, dictation, or a transcript.
Generate a note from bulletsUnited States: the rules around the score are real but indirect, and none of them sets a number. No federal or state LAW names the Bishop score, requires it before induction, or attaches a ripening agent to a threshold; ICD-10-CM has no code for a cervical score, and the diagnoses around an induction (post-term or prolonged pregnancy in category O48, failed induction in category O61) are coded from the provider's documented diagnosis and gestational age, never from the score; no CPT or HCPCS code names the Bishop score, and the examination is part of the evaluation or the global obstetric service rather than a separately billable event. Under PAYER POLICY, the early-delivery rules that do exist key on gestational age and medical indication: New York Medicaid pays 100 percent for a cesarean or induction before 39 weeks that is medically necessary and 25 percent for an elective one, identified by condition codes 81 and 82 on facility claims and modifiers U7 and U8 on practitioner claims, and its policy article never mentions the cervix; no national or major-payer primary source located for this page conditions induction authorization on a Bishop number, so a note that says insurance requires a Bishop score needs a named payer and policy behind it. Hospital scheduling forms that require a Bishop field for elective inductions are local CONVENTION and should be cited as the hospital's policy, not as ACOG's or a payer's. The professional guidance is CONVENTION with real force. ACOG Clinical Practice Guideline No. 9, Cervical Ripening in Pregnancy (Obstetrics and Gynecology, July 2025, volume 146, pages 148 to 160), replaced Practice Bulletin 107 of August 2009; it states that there is no universally accepted definition of an unfavorable cervix, that the Bishop score is the most frequently used method of judging cervical readiness, that study populations have been defined by thresholds from 3 to 8, that parity and gestational duration also bear on the decision to ripen, and that once ripening is deemed necessary the patient is counseled on the methods with their benefits and risks, with pharmacologic, mechanical, and combination methods chosen by clinical circumstances, contraindications (a uterine scar among them), preferences, and setting; the Practice Bulletin 107 language that many pages still quote (6 or less unfavorable; above 8 a vaginal-delivery likelihood similar to spontaneous labor) is superseded and should not be presented as current ACOG wording. ACOG Committee Opinion 831 (2021) governs the timing of medically indicated late-preterm and early-term deliveries by indication, which is where the whether-and-when decision lives. The Joint Commission's PC-01 (elective delivery at 37 to less than 39 weeks) was removed from ORYX reporting effective January 1, 2026 while remaining in use for certification; its exclusions run on diagnosis codes, gestational age, labor status, prior uterine surgery, and stillbirth history, and the words Bishop and cervix appear nowhere in its specification, so a unit that says the Joint Commission requires a Bishop score is quoting its own policy. The ARRIVE trial (Grobman and colleagues, New England Journal of Medicine 2018) randomized low-risk nulliparous women to induction at 39 weeks or expectant management, did not use the Bishop score as an eligibility criterion, reported that 63 percent had an unfavorable modified Bishop score (below 5) at randomization, and found cesarean delivery in 18.6 percent of the induction group against 22.2 percent (relative risk 0.84, 95 percent confidence interval 0.76 to 0.93): evidence that an unfavorable cervix does not convert induction into a higher-cesarean strategy, not a rule about documentation. In litigation (CONVENTION, as evidence), induction and informed-consent disputes are common, and no reported decision located for this page makes a Bishop value the standard of care; what an expert reads is the indication, the examination findings with their examiner, the contraindications, the counseling, the plan, and the reassessment, which is the record this page describes.
Canada and Australia set the clearest thresholds and the strongest documentation expectations, all of them CONVENTION, and the evidence explains why the components and the examiner matter more than the total. In Canada, no federal or provincial LAW names the score. SOGC's 2023 series (Journal of Obstetrics and Gynaecology Canada, volume 45, issue 1; Robinson and colleagues; replacing Guideline No. 296 of 2013) splits the topic: No. 432a covers general information, No. 432b directs cervical ripening when the modified Bishop score is below 7, and No. 432c takes a score of 7 or more toward amniotomy and oxytocin; provincial perinatal programs and registries (Perinatal Services BC, Alberta Health Services, BORN Ontario) capture cervical assessment in their own data dictionaries, and some provincial pathways use a length-based modified score, so a Canadian entry names the version as carefully as an American one. In Australia, RANZCOG's statement on prostaglandins for induction of labour (C-Obs 22; current version March 2019 with an interim update of February 2023; listed review date March 2024, now passed, so check for a successor before relying on it) directs that the method be chosen with regard to the favourability of the cervix (a cervical or Bishop score), parity, the indication and the likelihood of fetal compromise, the woman's preferences, and previous uterine surgery, and sets no numerical threshold; Queensland's Clinical Guideline on induction of labour uses a length-based Modified Bishop Score, recommends the score to inform the choice of method, allows amniotomy in selected patients with a low score when there is a clinical reason to avoid ripening, and proposes auditing whether a modified Bishop score was documented in the record before induction; the WA Country Health Service Induction of Labour Policy (version 3.04, published July 31, 2026) requires the requesting clinician to supply the indication, written consent (no consent, no induction), the current Bishop score, and the intended method, states that a score below 8 may likely require cervical ripening, and requires the clinician to notify the maternity unit if the score changes so that ripening is no longer needed; New South Wales issued its own induction policy in 2025; and the national Pregnancy Care Guidelines and the ACSQHC National Core Maternity Indicators track induction without a Bishop threshold. The United Kingdom's NICE NG207 (November 2021) is the reference many Canadian and Australian units read beside their own: 6 or less steers toward pharmacologic ripening with mechanical methods in specified circumstances, more than 6 toward amniotomy and oxytocin, 8 or more generally indicates a cervix ready to dilate, and the score is reassessed as induction progresses. On the evidence: Faltin-Traub and colleagues (2004) found exact agreement between two examiners on the total in 28 percent of 156 women at term and agreement within one point in 66 percent, with weighted kappa of 0.69, 0.54, and 0.35 across three examiner pairs; Dupuis and colleagues (2005) found numerical station errors in 50 to 88 percent of residents' and 36 to 80 percent of attendings' assessments on a birth simulator; Garcia-Simon and colleagues (2015) found ultrasound cervical length more reproducible between a consultant and a first-year resident than the Bishop score in 120 women, with intraclass correlations above 0.9 for the ultrasound measurement; Teixeira and colleagues (2012) pooled 59 studies and found higher scores associated with vaginal delivery and shorter induction-to-delivery intervals, with summary odds ratios from 1.98 to 5.48 depending on the cutoff used; Kolkman and colleagues (2013) pooled 40 studies of 13,757 women and found sensitivity and specificity pairs for cesarean delivery of 47 and 75 percent, 61 and 53 percent, and 78 and 44 percent at scores of 4, 5, and 6; Laughon and colleagues (2011) found positive predictive values for vaginal delivery of 87.7 percent for a simplified score above 5 and 87.0 percent for a classic score above 8, with negative predictive values of only 31.3 and 29.8 percent; the Cochrane review by Ezebialu and colleagues (2015) found two trials of 234 women comparing the Bishop score with transvaginal ultrasound, no superiority of either method on the main outcomes, and more frequent misoprostol use in the ultrasound arm; and a 2026 scoping review of 38 studies in nulliparous inductions (Félix and colleagues) confirmed the score's bedside utility while finding that predictive performance favored combined models and ultrasound parameters over the score alone. Those numbers are the reason to chart components with an examiner, to trend only within one version, and to keep the total out of any prediction about an individual birth.
The Bishop score is in the public domain as a method: Edward H. Bishop published it in Obstetrics and Gynecology in 1964, a scoring method is not copyrightable under 17 U.S.C. 102(b), no trademark attaches to the eponym, and any induction record, EHR field, or web tool may implement the five components and a total in its own words and layout, naming the version it implements. The 1964 article and its table as published remain the journal publisher's expression: ACOG's 2025 guideline credits Wolters Kluwer Health for permission to adapt Bishop's table, which is why this page describes the components and reproduces no table. The modified versions belong to their authors' papers (Burnett, 1966; Calder, Embrey, and Hillier, 1974) and the simplified score to Laughon and colleagues (2011); the tables and flowcharts in ACOG Clinical Practice Guideline No. 9, SOGC Guideline No. 432, NICE NG207, RANZCOG C-Obs 22, and the Queensland and Western Australian documents are those bodies' copyright and are linked, never reproduced. BastionGPT is not affiliated with, or endorsed by, any of these publishers. This page reproduces no test items, stimuli, norms, or scoring materials.
The numbers behind these errors are specific. Two examiners agreed exactly on the Bishop total in only 28 percent of 156 women at term and within one point in 66 percent, with weighted kappa of 0.35 to 0.69 across examiner pairs (Faltin-Traub and colleagues, 2004); station, one of the five components, was misjudged in 50 to 88 percent of residents' and 36 to 80 percent of attendings' simulator assessments (Dupuis and colleagues, 2005); across 40 studies and 13,757 women, a score of 6 predicted cesarean delivery with sensitivity of 78 percent and specificity of 44 percent (Kolkman and colleagues, 2013); a classic score above 8 carried a positive predictive value for vaginal delivery of 87.0 percent but a negative predictive value of 29.8 percent in 5,610 nulliparous inductions (Laughon and colleagues, 2011); and a meta-analysis of 59 studies found the association with vaginal delivery real but its size dependent on which cutoff a study chose (Teixeira and colleagues, 2012). ACOG's 2025 guideline states that no universally accepted definition of an unfavorable cervix exists. No published audit counts how often an induction record carries a total without its components, version, or examiner; the guideline, quality-audit, and litigation realities described under compliance considerations are what turn those omissions into a problem. The BastionGPT Clinical Advisory Board sees the same errors most often in Bishop score documentation reviews:
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Five findings from one digital cervical examination are each converted to points and summed: dilation (how open the cervix is, in centimeters), effacement (how much it has thinned, as a percentage in the classic score), station (where the presenting part sits relative to the ischial spines, on Bishop's scale of thirds from minus 3 to plus 3), consistency (firm through soft), and position (posterior through anterior). In the classic version dilation, effacement, and station carry up to 3 points each and consistency and position up to 2 each, for a total of 0 to 13; Bishop's population was multiparous women at term being considered for elective induction, and he regarded a total above 8 as suitable for it. Modified versions that score cervical length in centimeters instead of percentage effacement have their own maximums, and the simplified score of Laughon and colleagues keeps only dilation, effacement, and station for a range of 0 to 9. This page describes the components conceptually and reproduces no scoring table; score from your unit's pathway or guideline, and chart the five findings in their units before the total.
There is no universal answer, and the note should say whose answer it is using. ACOG's Clinical Practice Guideline No. 9 (July 2025), which replaced Practice Bulletin 107, states that there is no universally accepted definition of an unfavorable cervix and that studies have used thresholds from 3 to 8 to define who benefits from ripening before oxytocin; the older Practice Bulletin language of 6 or less unfavorable and above 8 comparable to spontaneous labor is no longer current ACOG wording. SOGC Guideline No. 432b (2023) directs cervical ripening when the modified Bishop score is below 7, and No. 432c moves to amniotomy and oxytocin at 7 or more. NICE NG207 (2021) steers method choice at 6 or less against more than 6 and describes 8 or more as a cervix generally ready to dilate. Queensland and Western Australian guidelines set their own conventions on a length-based modified score, and the WA Country Health Service writes that a score below 8 may likely require ripening. Write "unfavorable under [guideline or unit pathway]" with the threshold that pathway sets, never a bare "unfavorable," and never attribute a cutoff to ACOG.
Chart the version your unit's induction pathway actually uses, and name it. In a US unit built on the classic five-component score, write "classic Bishop, 0 to 13" with the five findings; in a Canadian service following SOGC or an Australian service following Queensland, the locally correct instrument is a modified score, and "modified" must be qualified, because the label covers several nonidentical systems: the Calder lineage scores cervical length in centimeters instead of percentage effacement, Queensland's Modified Bishop Score is its own length-based build, and a widely circulated variant adds or subtracts points for parity, pre-eclampsia, post-dates, and prelabor rupture of membranes, which no national guideline instrument does. The simplified score of Laughon and colleagues (2011) is labeled as such and runs 0 to 9. When the examination is recorded as cervical length ("cervix 2 cm long"), that is a length-based finding: record it as length by digital examination, apply a length-based version if your pathway names one, and never convert it to a percentage to feed the classic score. Keep digital length distinct from transvaginal ultrasound length, which is a different measurement, and keep the station scale explicit, because Bishop's thirds and the centimeter scale of minus 5 to plus 5 are not interchangeable.
Neither. The indication decides whether to induce, and no guideline withholds an indicated induction because the cervix is unfavorable; the score decides only whether ripening is offered and helps choose how. ACOG's 2025 guideline sets no universal cutoff and, once ripening is deemed necessary, directs counseling on pharmacologic, mechanical, and combination methods chosen by clinical circumstances, contraindications, preferences, and setting. SOGC uses below 7 and NICE uses 6 or less to steer toward ripening, which is an operational convention, not a drug order. Queensland's pathway allows amniotomy in selected patients with a low score when there is a clinical reason to avoid ripening, and RANZCOG makes parity, the indication, the woman's preferences, and previous uterine surgery co-equal inputs with cervical favourability. A prior cesarean is the clearest illustration: two patients with the same score have different acceptable methods because the scar is external to the score. Document the indication, the reading under a named convention, the method-specific facts, and the plan with its reasons; do not write the number as the reason.
No, and the record should not imply it. Bishop built the score in 1964 to select multiparous women at term for elective induction, not as an individualized cesarean-risk model; cesarean prediction is a later use that the evidence supports poorly. Kolkman and colleagues (2013) pooled 40 studies of 13,757 women and concluded that the score "should not be used to decide whether to induce labor or not," with sensitivity and specificity for cesarean delivery of 47 and 75 percent at a score of 4 and 78 and 44 percent at a score of 6. Laughon and colleagues (2011) found that a classic score above 8 predicted vaginal delivery with a positive predictive value of 87.0 percent, but that a low score identified who would not deliver vaginally with a negative predictive value of only 29.8 percent. Teixeira and colleagues (2012) found across 59 studies that higher scores are associated with vaginal delivery and shorter intervals, which is a population association, not a forecast for one patient. In the ARRIVE trial, 63 percent of low-risk nulliparous women had an unfavorable modified score at randomization, and induction at 39 weeks still lowered the cesarean rate (18.6 against 22.2 percent). A 2026 scoping review of 38 nulliparous studies found the score's stand-alone predictive performance limited compared with combined and ultrasound models. Write what the findings describe and what was planned; leave delivery mode out of it.
Both, as separate entries, each with its examiner, time, five findings, version, and total. There is no evidence-based rule for averaging two totals, and overwriting one with the other destroys the record of what each examiner found. Disagreement is expected: Faltin-Traub and colleagues (2004) found exact agreement on the total in 28 percent of paired examinations and agreement within one point in 66 percent, with weighted kappa from 0.35 to 0.69, and Dupuis and colleagues (2005) found station misjudged in a third or more of assessments even by attendings. When the two readings straddle a threshold that would change management, a repeat or senior examination is documented as a third entry with its own attribution. After ripening, the reassessment follows the method's protocol (balloon expulsion or dwell limit, the dose interval for a prostaglandin, and any change in findings that would change management; NICE asks for reassessment as induction progresses, and no universal recheck clock exists), and the entry describes the change with both sets of findings visible, so that a move from 1 to 7 reads as ripening observed by two named examiners rather than as an unexplained jump.
Not by law, not by any payer policy located for this page, and not by the Joint Commission; where it is required, the requirement is a guideline body's or an institution's. No US, Canadian, or Australian statute names the score. The Joint Commission's PC-01 elective delivery measure keys on gestational age, diagnosis codes, labor status, prior uterine surgery, and stillbirth history, never on cervical status, and it was removed from ORYX reporting effective January 1, 2026 while remaining in use for certification. Payer early-delivery rules such as New York Medicaid's key on medical necessity and gestational age and do not mention the cervix. What does expect a score is CONVENTION: Queensland proposes auditing whether a modified Bishop score was documented before induction, the WA Country Health Service requires the current Bishop score on every induction request beside the indication, written consent, and the intended method, SOGC and NICE structure their pathways around it, and ACOG calls it the most frequently used method of judging readiness without mandating it. So chart a score when your pathway expects one, cite the pathway or policy that expects it, and never write that a regulator or insurer requires it unless you can name the document.
The method, yes; a published table, no. A scoring method is not copyrightable under US law (17 U.S.C. 102(b) excludes procedures, processes, and systems), and Canadian and Australian copyright law draw the same line between an idea and its expression, so a hospital record, an EHR build, or a free calculator may implement the five components and a total in its own words and layout. What it may not do is copy a particular published expression: Bishop's 1964 article and its table remain the journal publisher's, and ACOG's 2025 guideline credits Wolters Kluwer Health for permission to adapt that table; the tables and flowcharts in the ACOG, SOGC, NICE, RANZCOG, and Queensland documents belong to those bodies. Two design points matter more than the rights question. Store the raw findings with their units, a version tag, and the computed total, not the total alone, because a field labeled Bishop score that accepts classic and length-based totals interchangeably is ambiguous by design. And label the version in the interface (classic 0 to 13, a named modified build, or simplified Laughon 0 to 9) so that clinicians in different units do not trend incompatible numbers. Nothing on this page or in its downloads reproduces a scoring table.
Yes. Give it the facts (the indication and gestational age with the dating method, the examination time and examiner, the five findings in the units assessed, the version, membrane status and the tracing category, prior uterine surgery and any contraindication, the method chosen and the reasons beyond the score, the consent discussion, and the reassessment trigger) and it drafts the full entry: indication and decision, examination with examiner and time, findings with units, version and total, method-specific facts, the reading attributed to the unit's convention, the plan with its reasons and consent, and the reassessment entry, ready for your review. It can also check a finished induction record for a total with no components, version, or examiner, mixed units or scales, a threshold with no source, the score charted as the order, a second examination overwriting the first, or the score standing in for the indication. BastionGPT is HIPAA-compliant with a signed BAA on every plan, and your data is never used to train models.
The instrument facts and compliance claims on this page trace to these sources, last verified September 2026:
Educational content, not legal or billing advice. Sample notes are fictional. Follow your organization's policies and your board, payer, and jurisdiction requirements.