ICD-10 Code for Cornual gestation or pregnancy
The ICD-10-CM code for cornual gestation or pregnancy is O00.51 — Cornual ectopic pregnancy without intrauterine pregnancy. This is the code the Alphabetic Index gives for cornual gestation or pregnancy with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
O00.51 cannot be submitted on a claim. It is a header code, so a more specific code from the list below is required.
Which cornual gestation or pregnancy code should you use?
The Alphabetic Index lists 2 codes under Cornual gestation or pregnancy. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| with intrauterine pregnancy | O00.52 | Cornual ectopic pregnancy with intrauterine pregnancy | not billable |
Codes under O00.51
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources