O33.909 ICD-10-CA code: Maternal care for disproportion, unspecified, unspecified as to episode of care, or not applicable
O33.909 is the ICD-10-CA code for “Maternal care for disproportion, unspecified, unspecified as to episode of care, or not applicable” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
O33.909Maternal care for disproportion, unspecified, unspecified as to episode of care, or not applicable
Short description: Mat care for disprop NOS/unspecified
ICD-10-CA · Canada · Also written O33909
Notes for O33.909
As CIHI prints them, with any note O33.909 takes from the headings above it.
Includes
- • Cephalopelvic disproportion NOS• Fetopelvic disproportion NOSFrom O33.9 Maternal care for disproportion, unspecified
- The listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for caesarean section before onset of labourFrom O33 Maternal care for known or suspected disproportion
Excludes
Conditions classified elsewhere.
- The listed conditions with obstructed labour (O65-O66)From O33 Maternal care for known or suspected disproportion
- 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 O33.909 sits
- 1ChapterChapter 15: Pregnancy, childbirth and the puerperium (O00-O99)
- 2Block O30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems
- 3Category O33Maternal care for known or suspected disproportion
- 4Subcategory O33.9Maternal care for disproportion, unspecified
- 5Valid code O33.909Maternal care for disproportion, unspecified, unspecified as to episode of care, or not applicable
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
What does ICD-10-CA code O33.909 mean?
O33.909 is the ICD-10-CA code for “Maternal care for disproportion, unspecified, unspecified as to episode of care, or not applicable” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is O33.909 in ICD-10-CA?
O33.909 sits under O33.9 Maternal care for disproportion, unspecified, within O33 Maternal care for known or suspected disproportion, 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 O33.909?
ICD-10-CA lists Includes, Excludes, Note notes for O33.909, 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.