O00Header code — not billable
Ectopic pregnancy
- Chapter
- 15. Pregnancy, childbirth and the puerperium
- Category
- O00
- Effective date
- October 1, 2026
Related codes in category O00
O00.0Abdominal pregnancyO00.00Abdominal pregnancy without intrauterine pregnancyYesO00.01Abdominal pregnancy with intrauterine pregnancyYesO00.1Tubal pregnancyO00.10Tubal pregnancy without intrauterine pregnancyO00.101Right tubal pregnancy without intrauterine pregnancyYesO00.102Left tubal pregnancy without intrauterine pregnancyYesO00.109Unspecified tubal pregnancy without intrauterine pregnancyYesO00.11Tubal pregnancy with intrauterine pregnancyO00.111Right tubal pregnancy with intrauterine pregnancyYesO00.112Left tubal pregnancy with intrauterine pregnancyYesO00.119Unspecified tubal pregnancy with intrauterine pregnancyYes
Frequently asked questions
What is ICD-10 code O00?
O00 is an ICD-10-CM diagnosis code for Ectopic pregnancy.
Is O00 a billable code?
No. O00 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is O00 in?
O00 falls under Chapter 15: Pregnancy, childbirth and the puerperium.
When did O00 become effective?
O00 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to O00?
O00 belongs to category O00, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.