Home / ICD-10-CM / Chapter 15 / O16

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

CodeDescription
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

Search within ICD-10-CM for O16 and related codes

Advertisement