2026 ICD-10-CM Diagnosis Code O20Hemorrhage in early pregnancy

ICD-10-CM Codes›O00-O9A›O20-O29›O20

ICD-10-CM O20
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O20 is a non-billable ICD-10-CM category code for hemorrhage in early pregnancy, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O20.0, O20.8, and O20.9.

Code Identity

ICD-10-CM Code
O20
Billable Status
No — Non-Billable Category
Code Describes
Hemorrhage in early pregnancy
Chapter
O20-O29
Other maternal disorders predominantly related to pregnancy

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO20-O29Other maternal disorders predominantly related to pregnancy
CategoryO20Hemorrhage in early pregnancy
This CodeO20Hemorrhage in early pregnancy

Specific Coding for Hemorrhage in early pregnancyOverview

Non-specific codes like O20 require more characters. Use one of these billable codes instead:

  • Use O20.0 for Threatened abortion

  • Use O20.8 for Other hemorrhage in early pregnancy

  • Use O20.9 for Hemorrhage in early pregnancy, unspecified

Tabular List NotesGuidance

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

Includes

  • hemorrhage before completion of 20 weeks gestation

Type 1 Excludes

  • pregnancy with abortive outcome O00 O08

Patient EducationClinical

Health Problems in Pregnancy

A health problem in pregnancy is any disease or condition that could affect your health or the health of your fetus. Some health problems may make it more likely that you will have a high-risk pregnancy. A high-risk pregnancy is one in which you, your fetus, or both are at higher risk for health problems than in a typical pregnancy.

The full article covers:

  • What are health problems in pregnancy?
  • What raises my risk for health problems during pregnancy?
  • Can chronic health conditions cause problems in pregnancy?
  • Can health problems in pregnancy be prevented?

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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About O20Overview

Is O20 (Hemorrhage in early pregnancy) a billable code?

No. This is a category header that groups the codes for hemorrhage in early pregnancy, and headers cannot be submitted on claims. Claims for hemorrhage in early pregnancy need a more specific code from this category, such as O20.0, O20.8, and O20.9.