ICD-10 Code for Cornual Gestation or Pregnancy
The default ICD-10-CM 2027 code for cornual gestation or pregnancy is O00.51 – Cornual ectopic pregnancy without intrauterine pregnancy (a header – choose a more specific code). More specific codes depend on the details documented, as listed in the official index (2 codes, 0 billable).
- Main code
O00.51– Cornual ectopic pregnancy without intrauterine pregnancy- Billable
- No – header code
Index entries for Cornual gestation or pregnancy
- with intrauterine pregnancy –
O00.52-(header)
How to choose the right code
Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.
Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.