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ICD-10-CM category

O16: Unspecified maternal hypertension

6 subcodes · 6 billable · Look up any code with the ICD-10 search

Codes under O16 (Unspecified maternal hypertension). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
O16.1Unspecified maternal hypertension, first trimester✓
O16.2Unspecified maternal hypertension, second trimester✓
O16.3Unspecified maternal hypertension, third trimester✓
O16.4Unspecified maternal hypertension, complicating childbirth✓
O16.5Unspecified maternal hypertension, complicating the puerperium✓
O16.9Unspecified maternal hypertension, unspecified trimester✓

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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