2026 ICD-10-CM Diagnosis Code O65.5Obstructed labor due to abnormality of maternal pelvic organs
ICD-10-CM Codes›O00-O9A›O60-O77›O65
- Billable — Valid for Submission
- Not Chronic
O65.5 is a billable ICD-10-CM diagnosis code for obstructed labor due to abnormality of maternal pelvic organs. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 817 through 819, 831 through 833. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). Coders also document this condition as maternal dystocia. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Malposition, disproportion or other labor complications.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for O65.5.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Maternal dystocia
- Obstructed labor caused by pelvic soft tissues
- Obstructed labor due to abnormality of maternal pelvic organs
- Prolapse of anterior lip of cervix obstructing labor
- Stenosis of cervix in pregnancy, childbirth and the puerperium
- Uterine prolapse in pregnancy
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Obstructed labor due to conditions listed in O34
Use Additional Code
- code to identify abnormality of pelvic organs O34
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- in pregnancy or childbirth - See: Anomaly, cervix, in pregnancy or childbirth;
- causing obstructed labor - O65.5
- Bicornate or bicornis uterus - Q51.3
- in pregnancy or childbirth - O34.00
- causing obstructed labor - O65.5
- Cyst (colloid) (mucous) (simple) (retention)
- ovary, ovarian (twisted) - N83.20
- in pregnancy or childbirth - O34.8
- with obstructed labor - O65.5
- pelvis, female - N94.89
- in pregnancy or childbirth - O34.8
- causing obstructed labor - O65.5
- Delivery (childbirth) (labor)
- polyp, cervix - O34.4
- causing obstructed labor - O65.5
- complicated - O75.9
- by
- female genital mutilation - O65.5
- malposition, malpresentation
- uterus or cervix - O65.5
- due to
- pelvic
- abnormality (maternal) - O65.9
- organ - O65.5
- stenosis or stricture, cervix - O65.5
- tumor, pelvic organs or tissues NEC - O65.5
- Double
- in pregnancy or childbirth - O34.0
- causing obstructed labor - O65.5
- Fibroid (tumor) - See Also: Neoplasm, connective tissue, benign;
- in pregnancy or childbirth - O34.1
- causing obstructed labor - O65.5
- Fibromyoma - See Also: Neoplasm, connective tissue, benign;
- uterus (corpus) - See Also: Leiomyoma, uterus;
- in pregnancy or childbirth - See: Fibroid, in pregnancy or childbirth;
- causing obstructed labor - O65.5
- causing obstructed labor - O65.5
- Malformation (congenital) - See Also: Anomaly;
- Pregnancy (single) (uterine) - See Also: Delivery and Puerperal; - Z33.1
- complicated by (care of) (management affected by)
- causing obstructed labor - O65.5
- pelvic organs - O34.9
- specified NEC - O34.8
- causing obstructed labor - O65.5
- causing obstructed labor - O65.5
- causing obstructed labor - O65.5
- causing obstructed labor - O65.5
- displacement, uterus NEC - O34.59
- causing obstructed labor - O65.5
- double uterus - O34.0
- causing obstructed labor - O65.5
- Septum, septate (congenital) - See Also: Anomaly, by site;
- in pregnancy - See: Pregnancy, complicated by, abnormal vagina;
- causing obstructed labor - O65.5
- Stenosis, stenotic (cicatricial) - See Also: Stricture;
- in pregnancy - See: Pregnancy, complicated by, abnormal vagina;
- causing obstructed labor - O65.5
- Stricture - See Also: Stenosis;
- cervix, cervical (canal) - N88.2
- in pregnancy - See: Pregnancy, complicated by, abnormal cervix;
- causing obstructed labor - O65.5
- Tumor - See Also: Neoplasm, unspecified behavior, by site;
- vulva or perineum, in pregnancy or childbirth - See: Pregnancy, complicated by;
- causing obstructed labor - O65.5
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Atresia, atretic
- cervix (acquired)
- in pregnancy or childbirth
- causing obstructed labor
- Bicornate or bicornis uterus
- in pregnancy or childbirth
- causing obstructed labor
- Cyst(colloid) (mucous) (simple) (retention)
- ovary, ovarian (twisted)
- in pregnancy or childbirth
- with obstructed labor
- Cyst(colloid) (mucous) (simple) (retention)
- pelvis, female
- in pregnancy or childbirth
- causing obstructed labor
- Cystocele(-urethrocele)
- in pregnancy or childbirth
- causing obstructed labor
- Deformity
- soft parts, organs or tissues (of pelvis)
- in pregnancy or childbirth NEC
- causing obstructed labor
- Delivery(childbirth) (labor)
- cesarean (for)
- polyp, cervix
- causing obstructed labor
- Delivery(childbirth) (labor)
- complicated
- by
- female genital mutilation
- Delivery(childbirth) (labor)
- complicated
- by
- malposition, malpresentation
- uterus or cervix
- Delivery(childbirth) (labor)
- complicated
- by
- obstructed labor
- due to
- pelvic
- abnormality (maternal)
- organ
- Delivery(childbirth) (labor)
- complicated
- by
- stenosis or stricture, cervix
- Delivery(childbirth) (labor)
- complicated
- by
- tumor, pelvic organs or tissues NEC
- Double
- uterus
- in pregnancy or childbirth
- causing obstructed labor
- Fibroid(tumor)
- in pregnancy or childbirth
- causing obstructed labor
- Fibromyoma
- uterus (corpus)
- in pregnancy or childbirth
- causing obstructed labor
- Fibrosis, fibrotic
- perineum, in pregnancy or childbirth
- causing obstructed labor
- Incarceration, incarcerated
- uterus
- gravid
- causing obstructed labor
- Malformation(congenital)
- pelvic organs or tissues NEC
- in pregnancy or childbirth
- causing obstructed labor
- Pregnancy(single) (uterine)
- complicated by (care of) (management affected by)
- abnormal, abnormality
- cervix
- causing obstructed labor
- Pregnancy(single) (uterine)
- complicated by (care of) (management affected by)
- abnormal, abnormality
- pelvic organs
- specified NEC
- causing obstructed labor
- Pregnancy(single) (uterine)
- complicated by (care of) (management affected by)
- abnormal, abnormality
- uterus
- causing obstructed labor
- Pregnancy(single) (uterine)
- complicated by (care of) (management affected by)
- abnormal, abnormality
- vagina
- causing obstructed labor
- Pregnancy(single) (uterine)
- complicated by (care of) (management affected by)
- abnormal, abnormality
- vulva
- causing obstructed labor
- Pregnancy(single) (uterine)
- complicated by (care of) (management affected by)
- displacement, uterus NEC
- causing obstructed labor
- Pregnancy(single) (uterine)
- complicated by (care of) (management affected by)
- double uterus
- causing obstructed labor
- Prolapse, prolapsed
- cervix, cervical (hypertrophied)
- anterior lip, obstructing labor
- Septum, septate(congenital)
- vagina
- in pregnancy
- causing obstructed labor
- Stenosis, stenotic(cicatricial)
- vagina
- in pregnancy
- causing obstructed labor
- Stricture
- cervix, cervical (canal)
- in pregnancy
- causing obstructed labor
- Tumor
- vulva or perineum, in pregnancy or childbirth
- causing obstructed labor
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Childbirth Problems
Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert O65.5 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About O65.5Overview
Is O65.5 (Obstructed labor due to maternal pelvic abnormality) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report obstructed labor due to abnormality of maternal pelvic organs on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does O65.5 group to?
When obstructed labor due to abnormality of maternal pelvic organs is the principal diagnosis on an inpatient stay, it groups to MS-DRG 817, 818, 819, 831, 832, 833, with relative weights from 0.5229 to 1.6880 depending on complications. Higher weights mean higher Medicare reimbursement.
Who can O65.5 be reported for?
The Medicare Code Editor checks obstructed labor due to abnormality of maternal pelvic organs against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.
What is the ICD-9 equivalent of O65.5?
Under the General Equivalence Mappings, obstructed labor due to abnormality of maternal pelvic organs converts to ICD-9-CM 660.21 (abn pelv tis obstr-deliv). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
