O00 ICD-10-CA category: Ectopic pregnancy
O00 isn’t a code on its own. Choose one of the 5 codes beneath it, the one the documentation supports.
Official description
O00Ectopic pregnancy
ICD-10-CA · Canada
Codes in O00
O00 isn’t a code on its own. Open the code that matches what the note documents.
Notes for O00
As CIHI prints them, with any note O00 takes from the headings above it.
Includes
- Ruptured ectopic pregnancy
Use additional code
Add a code for this detail when the note documents it.
- Use additional code from category O08.- to identify any associated complication.
Excludes
Conditions classified elsewhere.
- Continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.11-)From O00-O08 Pregnancy with abortive outcome
- Certain diseases or injuries complicating pregnancy, childbirth, and the puerperium classified elsewhere:external causes (for mortality) (V,W,X,Y)injury, poisoning and certain other consequences of external causes (S00-T88.1, T88.6-T98)mental and behavioural disorders associated with the puerperium (F53.-)obstetrical tetanus (A34)postpartum necrosis of pituitary gland (E23.0)puerperal osteomalacia (M83.0)supervision of:• high-risk pregnancy (Z35.-)• normal pregnancy (Z34.-)From Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99)
Note
- The codes included in this chapter are to be used for conditions related to or aggravated by the pregnancy, childbirth or by the puerperium (maternal causes or obstetric causes)From Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99)
Where O00 sits
- 1ChapterChapter 15: Pregnancy, childbirth and the puerperium (O00-O99)
- 2Block O00-O08Pregnancy with abortive outcome
- 3Category O00Ectopic pregnancy
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is O00 a valid ICD-10-CA code?
No. O00 (Ectopic pregnancy) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 5 codes; record the one the documentation supports.
Where is O00 in ICD-10-CA?
O00 sits under O00-O08 Pregnancy with abortive outcome, within Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99).
What coding notes apply to O00?
ICD-10-CA lists Includes, Use additional code, Excludes, Note notes for O00, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.