ICD-10-CM Current in FY 2027

O33.9

Maternal care for disproportion, unspecified

Release: FY 2027
Effective: October 1, 2026

Hierarchy

Where O33.9 sits in the official hierarchy. Each level is the code it is classified under.

O33 Parent Maternal care for disproportion
O33.9 This code Maternal care for disproportion, unspecified

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Includes

the listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor

Inherited from O33 — Maternal care for disproportion

Inclusion Terms

Maternal care for disproportion due to cephalopelvic disproportion NOS

Inclusion Terms

Maternal care for disproportion due to fetopelvic disproportion NOS

Excludes1

disproportion with obstructed labor (O65-O66)

Inherited from O33 — Maternal care for disproportion

Version History

How O33.9 appears in each release imported from the official files, newest first.

FY 2027 Effective October 1, 2026
Current

Maternal care for disproportion, unspecified
FY 2026 Effective October 1, 2025
Unchanged

Maternal care for disproportion, unspecified

Other codes under O33

Codes whose official notes reference O33.9

O75.82 Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section Billable

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release: FY 2027
Effective: October 1, 2026
Source file: icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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