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O33

Non-billable

Maternal care for disproportion

O33 is the ICD-10-CM code for Maternal care for disproportion. It is a non-billable category code — use a more specific child code such as O33.0 for billing.

Status
Header (non-billable)
Chapter
O00-O9A
Subcodes
10
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

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

Excludes1 — not coded here

  • •disproportion with obstructed labor (O65-O66)

Frequently asked questions

What is ICD-10 code O33?
O33 is the ICD-10-CM code for "Maternal care for disproportion". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O33 a billable code?
No — O33 is a non-billable header code. Use a more specific child code (such as O33.0) for billing.
What are the subcodes of O33?
O33 has 10 more specific child codes, including O33.0, O33.1, O33.2.
What is excluded from O33?
Excludes1 (not coded here): disproportion with obstructed labor (O65-O66).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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