O11 Pre-existing hypertension with pre-eclampsia
ICD-10-CM category O11 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 O11
| Code | Description |
|---|---|
O11.1 | Pre-existing hypertension with pre-eclampsia, first trimester |
O11.2 | Pre-existing hypertension with pre-eclampsia, second trimester |
O11.3 | Pre-existing hypertension with pre-eclampsia, third trimester |
O11.4 | Pre-existing hypertension with pre-eclampsia, complicating childbirth |
O11.5 | Pre-existing hypertension with pre-eclampsia, complicating the puerperium |
O11.9 | Pre-existing hypertension with pre-eclampsia, unspecified trimester |
Search within ICD-10-CM for O11 and related codes
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