O00.521: Right cornual ectopic pregnancy with intrauterine pregnancy

New code · FY2027

Billable: use this code on claims.

• New code, effective October 1, 2026 (FY2027). Before that, this condition was coded as O00.81.

Code breakdown

Coding notes

Includes (from O00)

• ruptured ectopic pregnancy

Use additional code (from O00)

• code from category O08 to identify any associated complication

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All FY2027 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.