O03.3 ICD-10-CA code: Spontaneous abortion, incomplete, with other and unspecified complications

O03.3 is the ICD-10-CA code for “Spontaneous abortion, incomplete, with other and unspecified complications” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

O03.3

Spontaneous abortion, incomplete, with other and unspecified complications

Short description: Spont abortion incomp oth/unspec comp

ICD-10-CA · Canada · Also written O033

Notes for O03.3

As CIHI prints them, with any note O03.3 takes from the headings above it.

Includes

With conditions in O08.3-O08.9
MiscarriageFrom O03 Spontaneous abortion

Use additional code

Add a code for this detail when the note documents it.

Use additional code (O08.3-O08.9) 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

Incomplete abortion includes retained products of conception following abortion.From O03 Spontaneous abortion
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 O03.3 sits

1ChapterChapter 15: Pregnancy, childbirth and the puerperium (O00-O99)
2Block O00-O08Pregnancy with abortive outcome
3Category O03Spontaneous abortion
4Valid code O03.3Spontaneous abortion, incomplete, with other and unspecified complications

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.

See O03.3 in the CIHI source

Frequently asked questions

What does ICD-10-CA code O03.3 mean?

O03.3 is the ICD-10-CA code for “Spontaneous abortion, incomplete, with other and unspecified complications” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is O03.3 in ICD-10-CA?

O03.3 sits under O03 Spontaneous abortion, within O00-O08 Pregnancy with abortive outcome, within Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99).

What coding notes apply to O03.3?

ICD-10-CA lists Includes, Use additional code, Note, Excludes notes for O03.3, 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.

View O03