O00
ICD-10Non-billable categoryEctopic pregnancy
Official ICD-10-CM descriptor (FY2026)
Ectopic pregnancy
O00 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
- ruptured ectopic pregnancy
Use additional code
Report an additional code to identify the associated condition.
- code from category O08 to identify any associated complication
More specific codes under O00
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.