O16 Unspecified maternal hypertension
ICD-10-CM category O16 sits in Chapter 15 (Pregnancy, childbirth and the puerperium, O00-O9A). It contains 6 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Billable codes in O16
| Code | Description |
|---|---|
O16.1 | Unspecified maternal hypertension, first trimester |
O16.2 | Unspecified maternal hypertension, second trimester |
O16.3 | Unspecified maternal hypertension, third trimester |
O16.4 | Unspecified maternal hypertension, complicating childbirth |
O16.5 | Unspecified maternal hypertension, complicating the puerperium |
O16.9 | Unspecified maternal hypertension, unspecified trimester |
Search within ICD-10-CM for O16 and related codes
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