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O34.503 ICD-10-CA code: Maternal care for other abnormalities of gravid uterus, antepartum condition or complication

O34.503 is the ICD-10-CA code for “Maternal care for other abnormalities of gravid uterus, antepartum condition or complication” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

O34.503

Maternal care for other abnormalities of gravid uterus, antepartum condition or complication

Short description: Mat care for oth abn gravid ut/antepart

ICD-10-CA · Canada · Also written O34503

Notes for O34.503

As CIHI prints them, with any note O34.503 takes from the headings above it.

Includes

Excludes

Conditions classified elsewhere.

  • The listed conditions with obstructed labour (O65.5) and (O66.-)From O34 Maternal care for known or suspected abnormality of pelvic organs
  • 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 O34.503 sits

  1. 1ChapterChapter 15: Pregnancy, childbirth and the puerperium (O00-O99)
  2. 2Block O30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems
  3. 3Category O34Maternal care for known or suspected abnormality of pelvic organs
  4. 4Subcategory O34.5Maternal care for other abnormalities of gravid uterus
  5. 5Valid code O34.503Maternal care for other abnormalities of gravid uterus, antepartum condition or complication

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 O34.503 in the CIHI source

Frequently asked questions

What does ICD-10-CA code O34.503 mean?

O34.503 is the ICD-10-CA code for “Maternal care for other abnormalities of gravid uterus, antepartum condition or complication” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is O34.503 in ICD-10-CA?

O34.503 sits under O34.5 Maternal care for other abnormalities of gravid uterus, within O34 Maternal care for known or suspected abnormality of pelvic organs, within O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems, within Chapter 15: Pregnancy, childbirth and the puerperium (O00-O99).

What coding notes apply to O34.503?

ICD-10-CA lists Includes, Excludes, Note notes for O34.503, 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.

Codes beside O34.503

O34.501Maternal care for other abnormalities of gravid uterus, delivered, with or without mention of antepartum conditionO34.502Maternal care for other abnormalities of gravid uterus, delivered, with mention of postpartum complicationO34.504Maternal care for other abnormalities of gravid uterus, postpartum condition or complicationO34.509Maternal care for other abnormalities of gravid uterus, unspecified as to episode of care, or not applicable