2026 ICD-10-CM Diagnosis Code O04.81Shock following (induced) termination of pregnancy

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

ICD-10-CM O04.81
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O04.81 is a billable ICD-10-CM diagnosis code for shock 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). Coders also document this condition as incomplete induced termination of pregnancy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Induced abortion and complications of termination of pregnancy and Shock.

Code Identity

ICD-10-CM Code
O04.81
Billable Status
Yes — Valid for Submission
Code Describes
Shock following (induced) termination of pregnancy
Short Description
Shock following (induced) termination of pregnancy
Same as the full description in the CMS dataset.
Parent Code
O04.8
(Induced) termination of pregnancy with other and unspecified complications

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO00-O08Pregnancy with abortive outcome
CategoryinducedComplications following termination of pregnancy (O04)
This CodeO04.81Shock following (induced) termination of pregnancy

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O04.81.

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.

  • Incomplete induced termination of pregnancy
  • Incomplete induced termination of pregnancy complicated by shock
  • Induced termination of pregnancy complicated by postoperative shock
  • Induced termination of pregnancy complicated by shock
  • Shock due to and following complete induced termination of pregnancy

Tabular List NotesGuidance

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

Inclusion Terms

  • Circulatory collapse following (induced) termination of pregnancy
  • Shock (postprocedural) following (induced) termination of pregnancy

Type 1 Excludes

  • shock due to infection following induced termination of pregnancy O04.87

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
          • circulatory collapse
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • shock

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
CCSR SYM003
Shock
Default principal diagnosis: inpatient No · outpatient No

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 O04.81 to ICD-9-CMHistory

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

ICD-9-CM
635.52 Legal abort w shock-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 O04.81Overview

Is O04.81 a billable code?

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

Who can O04.81 be reported for?

The Medicare Code Editor checks shock 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 O04.81?

Under the General Equivalence Mappings, shock following (induced) termination of pregnancy converts to ICD-9-CM 635.52 (legal abort w shock-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.