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O09.21

Non-billable

Supervision of pregnancy with history of pre-term labor

O09.21 is the ICD-10-CM code for Supervision of pregnancy with history of pre-term labor. It is a non-billable category code — use a more specific child code such as O09.211 for billing.

Status
Header (non-billable)
Chapter
O00-O9A
Parent
O09.2
Subcodes
4
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code O09.21?
O09.21 is the ICD-10-CM code for "Supervision of pregnancy with history of pre-term labor". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O09.21 a billable code?
No — O09.21 is a non-billable header code. Use a more specific child code (such as O09.211) for billing.
What are the subcodes of O09.21?
O09.21 has 4 more specific child codes, including O09.211, O09.212, O09.213.

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

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