2026 ICD-10-CM Diagnosis Code O04.5Genital tract and pelvic infection following (induced) termination of pregnancy

ICD-10-CM Codes›O00-O9A›O00-O08›induced

ICD-10-CM O04.5
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O04.5 is a billable ICD-10-CM diagnosis code for genital tract and pelvic infection following (induced) termination of pregnancy. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Induced abortion and complications of termination of pregnancy.

Code Identity

ICD-10-CM Code
O04.5
Billable Status
Yes — Valid for Submission
Code Describes
Genital tract and pelvic infection following (induced) termination of pregnancy
Short Description
Genitl trct and pelvic infct fol (induced) term of pregnancy
Parent Code
O04
Complications following (induced) termination of pregnancy

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO00-O08Pregnancy with abortive outcome
CategoryinducedComplications following termination of pregnancy (O04)
This CodeO04.5Genital tract and pelvic infection following (induced) termination of pregnancy

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O04.5.

Maternity diagnoses
The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Genital tract infection due to and following pregnancy with abortive outcome
  • Genital-pelvic infection due to and following complete induced termination of pregnancy
  • Incomplete induced termination of pregnancy
  • Incomplete induced termination of pregnancy complicated by genital-pelvic infection
  • Induced termination of pregnancy complicated by endometritis
  • Induced termination of pregnancy complicated by genital-pelvic infection
  • Induced termination of pregnancy complicated by infectious disease
  • Induced termination of pregnancy complicated by parametritis
  • Induced termination of pregnancy complicated by pelvic peritonitis
  • Induced termination of pregnancy complicated by salpingitis
  • Induced termination of pregnancy complicated by salpingo-oophoritis
  • Parametritis
  • Pelvic infection due to and following pregnancy with abortive outcome
  • Pelvic peritonitis
  • Tubo-ovarian inflammatory disease

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Endometritis following (induced) termination of pregnancy
  • Oophoritis following (induced) termination of pregnancy
  • Parametritis following (induced) termination of pregnancy
  • Pelvic peritonitis following (induced) termination of pregnancy
  • Salpingitis following (induced) termination of pregnancy
  • Salpingo-oophoritis following (induced) termination of pregnancy

Type 1 Excludes

  • sepsis following induced termination of pregnancy O04.87
  • urinary tract infection following induced termination of pregnancy O04.88

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • endometritis
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • genital tract and pelvic infection
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • infection
            • genital tract or pelvic
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • oophoritis
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • parametritis
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • pelvic peritonitis
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • salpingitis or salpingo-oophoritis

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR PRG004
Induced abortion and complications of termination of pregnancy
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Parametritis

    inflammation of the parametrium, the connective tissue of the pelvic floor, extending from the subserous coat of the uterus laterally between the layers of the broad ligament.

  • Broad Ligament

    a broad fold of peritoneum that extends from the side of the uterus to the wall of the pelvis.

  • Pelvic Peritonitis

    inflammation of the peritoneum surrounding the pelvic organs.

Patient EducationClinical

Abortion

An induced abortion is a procedure to end a pregnancy. It can be done two different ways:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert O04.5 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
635.02 Leg abor w pelv inf-comp
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About O04.5Overview

Is O04.5 (Complications following (induced) termination of pregnancy) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report genital tract and pelvic infection following (induced) termination of pregnancy on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Who can O04.5 be reported for?

The Medicare Code Editor checks genital tract and pelvic infection following (induced) termination of pregnancy 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 O04.5?

Under the General Equivalence Mappings, genital tract and pelvic infection following (induced) termination of pregnancy converts to ICD-9-CM 635.02 (leg abor w pelv inf-comp). 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.