2027 ICD-10-CM Diagnosis Code O34Maternal care for abnormality of pelvic organs

ICD-10-CM Codes›O00-O9A›O30-O48›O34

ICD-10-CM O34
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

O34 is a non-billable ICD-10-CM category code for maternal care for abnormality of pelvic organs, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O34.00, O34.01, O34.02, and O34.03.

Code Identity

ICD-10-CM Code
O34
Billable Status
No — Non-Billable Category
Code Describes
Maternal care for abnormality of pelvic organs
Short Description
Maternal care for abnormality of pelvic organs
Same as the full description in the CMS dataset.
Chapter
O30-O48
Maternal care related to the fetus and amniotic cavity and possible delivery problems

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems
CategoryO34Maternal care for abnormality of pelvic organs
This CodeO34Maternal care for abnormality of pelvic organs

Specific Coding for Maternal care for abnormality of pelvic organsOverview

Non-specific codes like O34 require more characters. Use one of these billable codes instead:

  • O34.0 for Maternal care for congenital malformation of uterus

  • Use O34.00 for Maternal care for unspecified congenital malformation of uterus, unspecified trimester

  • Use O34.01 for Maternal care for unspecified congenital malformation of uterus, first trimester

  • Use O34.02 for Maternal care for unspecified congenital malformation of uterus, second trimester

  • Use O34.03 for Maternal care for unspecified congenital malformation of uterus, third trimester

  • O34.1 for Maternal care for benign tumor of corpus uteri

  • Use O34.10 for Maternal care for benign tumor of corpus uteri, unspecified trimester

  • Use O34.11 for Maternal care for benign tumor of corpus uteri, first trimester

  • Use O34.12 for Maternal care for benign tumor of corpus uteri, second trimester

  • Use O34.13 for Maternal care for benign tumor of corpus uteri, third trimester

  • O34.2 for Maternal care due to uterine scar from previous surgery

  • O34.21 for Maternal care for scar from previous cesarean delivery

  • Use O34.22 for Maternal care for cesarean scar defect (isthmocele)

  • Use O34.29 for Maternal care due to uterine scar from other previous surgery

  • O34.3 for Maternal care for cervical incompetence

  • Use O34.30 for Maternal care for cervical incompetence, unspecified trimester

  • Use O34.31 for Maternal care for cervical incompetence, first trimester

  • Use O34.32 for Maternal care for cervical incompetence, second trimester

  • Use O34.33 for Maternal care for cervical incompetence, third trimester

  • O34.4 for Maternal care for other abnormalities of cervix

  • Use O34.40 for Maternal care for other abnormalities of cervix, unspecified trimester

  • Use O34.41 for Maternal care for other abnormalities of cervix, first trimester

  • Use O34.42 for Maternal care for other abnormalities of cervix, second trimester

  • Use O34.43 for Maternal care for other abnormalities of cervix, third trimester

  • O34.5 for Maternal care for other abnormalities of gravid uterus

  • O34.51 for Maternal care for incarceration of gravid uterus

  • O34.52 for Maternal care for prolapse of gravid uterus

  • O34.53 for Maternal care for retroversion of gravid uterus

  • O34.59 for Maternal care for other abnormalities of gravid uterus

  • O34.6 for Maternal care for abnormality of vagina

  • Use O34.60 for Maternal care for abnormality of vagina, unspecified trimester

  • Use O34.61 for Maternal care for abnormality of vagina, first trimester

  • Use O34.62 for Maternal care for abnormality of vagina, second trimester

  • Use O34.63 for Maternal care for abnormality of vagina, third trimester

  • O34.7 for Maternal care for abnormality of vulva and perineum

  • Use O34.70 for Maternal care for abnormality of vulva and perineum, unspecified trimester

  • Use O34.71 for Maternal care for abnormality of vulva and perineum, first trimester

  • Use O34.72 for Maternal care for abnormality of vulva and perineum, second trimester

  • Use O34.73 for Maternal care for abnormality of vulva and perineum, third trimester

  • O34.8 for Maternal care for other abnormalities of pelvic organs

  • Use O34.80 for Maternal care for other abnormalities of pelvic organs, unspecified trimester

  • Use O34.81 for Maternal care for other abnormalities of pelvic organs, first trimester

  • Use O34.82 for Maternal care for other abnormalities of pelvic organs, second trimester

  • Use O34.83 for Maternal care for other abnormalities of pelvic organs, third trimester

  • O34.9 for Maternal care for abnormality of pelvic organ, unspecified

  • Use O34.90 for Maternal care for abnormality of pelvic organ, unspecified, unspecified trimester

  • Use O34.91 for Maternal care for abnormality of pelvic organ, unspecified, first trimester

  • Use O34.92 for Maternal care for abnormality of pelvic organ, unspecified, second trimester

  • Use O34.93 for Maternal care for abnormality of pelvic organ, unspecified, third trimester

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to O34: its own notes plus those printed at Chapter 15. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

  • the listed conditions as a reason for hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • supervision of normal pregnancy (Z34.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Code First

The underlying condition named in the note is sequenced before this code.

  • any associated obstructed labor (O65.5)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

On O34 itself
  • code for specific condition
From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Notes

General instructions on how these codes are used.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • 1st trimester- less than 14 weeks 0 days
  • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • 3rd trimester- 28 weeks 0 days until delivery

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name O34, its category, or a range that includes it.

Applicable To 1

These notes mention O34.

  • O65.5 Obstructed labor due to abnormality of maternal pelvic organs
    Obstructed labor due to conditions listed in O34.-

Excludes2 1

These codes carry an Excludes2 note naming O34: its condition is not part of those codes, and both may be reported when the patient has both.

  • O99.8 Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium
    maternal care for known or suspected abnormality of maternal pelvic organs (O34.-)

Use Additional Code 1

These codes say to use an additional code from the note, and O34 is one of the codes named.

  • O65.5 Obstructed labor due to abnormality of maternal pelvic organs
    code to identify abnormality of pelvic organs O34.-

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.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About O34Overview

What is the ICD-10 code for maternal care for abnormality of pelvic organs?

O34 is the ICD-10-CM category for maternal care for abnormality of pelvic organs, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is O34 (Maternal care for abnormality of pelvic organs) a billable code?

No. This is a category header that groups the codes for maternal care for abnormality of pelvic organs, and headers cannot be submitted on claims. Claims for maternal care for abnormality of pelvic organs need a more specific code from this category, such as O34.00, O34.01, and O34.02.

Does O34 need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code for specific condition. The additional code is reported after O34.