2026 ICD-10-CM Diagnosis Code O04.6Delayed or excessive hemorrhage following (induced) termination of pregnancy

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

ICD-10-CM O04.6
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O04.6 is a billable ICD-10-CM diagnosis code for delayed or excessive hemorrhage 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
O04.6
Billable Status
Yes — Valid for Submission
Code Describes
Delayed or excessive hemorrhage following (induced) termination of pregnancy
Short Description
Delayed or excess hemor 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 CodeO04.6Delayed or excessive hemorrhage following (induced) termination of pregnancy

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O04.6.

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.

  • Afibrinogenemia
  • Excessive hemorrhage due to and following complete induced termination of pregnancy
  • Excessive hemorrhage due to and following induced termination of pregnancy
  • Incomplete induced termination of pregnancy
  • Incomplete induced termination of pregnancy complicated by delayed or excessive hemorrhage
  • Induced termination of pregnancy complicated by afibrinogenemia
  • Induced termination of pregnancy complicated by defibrination syndrome
  • Induced termination of pregnancy complicated by intravascular hemolysis
  • Intravascular hemolysis
  • Secondary hemorrhage
  • Secondary hemorrhage due to and following induced termination of pregnancy
  • Secondary hemorrhage postprocedure

Tabular List NotesGuidance

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

Inclusion Terms

  • Afibrinogenemia following (induced) termination of pregnancy
  • Defibrination syndrome following (induced) termination of pregnancy
  • Hemolysis following (induced) termination of pregnancy
  • Intravascular coagulation following (induced) termination of pregnancy

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
          • afibrinogenemia
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • defibrination syndrome
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • hemolysis
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • hemorrhage (delayed) (excessive)
    • Abortion(complete) (spontaneous)
      • induced (encounter for)
        • complicated by
          • intravascular coagulation

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

  • Afibrinogenemia

    a deficiency or absence of fibrinogen in the blood.

  • Fibrinogen

    plasma glycoprotein clotted by thrombin, composed of a dimer of three non-identical pairs of polypeptide chains (alpha, beta, gamma) held together by disulfide bonds. fibrinogen clotting is a sol-gel change involving complex molecular arrangements: whereas fibrinogen is cleaved by thrombin to form polypeptides a and b, the proteolytic action of other enzymes yields different fibrinogen degradation products.

  • Afibrinogenemia

    a blood coagulation disorder characterized by the complete absence of fibrinogen in the blood, resulting in bleeding.

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 O04.6 to ICD-9-CMHistory

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

ICD-9-CM
635.12 Legal abor w hemorr-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 O04.6Overview

Is O04.6 (Complications following (induced) termination of pregnancy) a billable code?

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

Who can O04.6 be reported for?

The Medicare Code Editor checks delayed or excessive hemorrhage 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 O04.6?

Under the General Equivalence Mappings, delayed or excessive hemorrhage following (induced) termination of pregnancy converts to ICD-9-CM 635.12 (legal abor w hemorr-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.