O16.4: Unspecified maternal hypertension, complicating childbirth
O16.4 is the billable ICD-10-CM diagnosis code for Unspecified maternal hypertension, complicating childbirth. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code O16.4?
O16.4 is the ICD-10-CM diagnosis code for Unspecified maternal hypertension, complicating childbirth. It belongs to category O16 (Unspecified maternal hypertension).
Is O16.4 a billable code?
Yes. O16.4 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does O16.4 belong to?
O16.4 is part of ICD-10-CM category O16 — Unspecified maternal hypertension, which has 12 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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