O20

ICD-10Non-billable category

Hemorrhage in early pregnancy

Official ICD-10-CM descriptor (FY2026)

Hemorrhage in early pregnancy

O20 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Includes

  • hemorrhage before completion of 20 weeks gestation

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

  • pregnancy with abortive outcome (O00-O08)

More specific codes under O20

Where this code sits

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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