When is ICD-10 code O04 used?

Doctors, hospitals, and insurers may use ICD-10 code O04 when recording complications following (induced) termination of pregnancy in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code O04 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code O04: Complications following (induced) termination of pregnancy

Name: ICD-10 Code O04: Complications following (induced) termination of pregnancy
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:27:19.992Z

O04 is an ICD-10 diagnosis entry used to group records related to Complications following (induced) termination of pregnancy. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).

When is it used?

May be used when a clinician documents complications following (induced) termination of pregnancy in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

15Pregnancy, childbirth and the puerperium (O00-O9A)

block

O00-O08Pregnancy with abortive outcome

currentO00-O08

Official coding notes

Includes

complications following (induced) termination of pregnancy

Excludes2 (may code together if documented)

encounter for elective termination of pregnancy (Z33.2)
failed attempted termination of pregnancy (O07.-)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

ObstetricianGynecologist

Sibling codes

O00Ectopic pregnancy O01Hydatidiform mole O02Other abnormal products of conception O03Spontaneous abortion O07Failed attempted termination of pregnancy O08Complications following ectopic and molar pregnancy

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

O04

Replacement codes

O04.5 — Genital tract and pelvic infection following (induced) termination of pregnancyO04.6 — Delayed or excessive hemorrhage following (induced) termination of pregnancyO04.7 — Embolism following (induced) termination of pregnancy

Common synonyms

Complications following (induced) termination of pregnancyComplications followingComplications following induced termination of pregnancy

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.