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O10

Non-billable

Pre-existing hypertension complicating pregnancy, childbirth and the puerperium

O10 is the ICD-10-CM code for Pre-existing hypertension complicating pregnancy, childbirth and the puerperium. It is a non-billable category code — use a more specific child code such as O10.0 for billing.

Status
Header (non-billable)
Chapter
O00-O9A
Subcodes
6
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

Includes

  • •pre-existing hypertension with pre-existing proteinuria complicating pregnancy, childbirth and the puerperium

Excludes2 — not included here

  • •pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-)

Frequently asked questions

What is ICD-10 code O10?
O10 is the ICD-10-CM code for "Pre-existing hypertension complicating pregnancy, childbirth and the puerperium". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O10 a billable code?
No — O10 is a non-billable header code. Use a more specific child code (such as O10.0) for billing.
What are the subcodes of O10?
O10 has 6 more specific child codes, including O10.0, O10.1, O10.2.

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

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