O20
ICD-10Non-billable categoryHemorrhage 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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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.