O21 Excessive vomiting in pregnancy
ICD-10-CM category O21 sits in Chapter 15 (Pregnancy, childbirth and the puerperium, O00-O9A). It contains 5 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 O21
| Code | Description |
|---|---|
O21.0 | Mild hyperemesis gravidarum |
O21.1 | Hyperemesis gravidarum with metabolic disturbance |
O21.2 | Late vomiting of pregnancy |
O21.8 | Other vomiting complicating pregnancy |
O21.9 | Vomiting of pregnancy, unspecified |
Search within ICD-10-CM for O21 and related codes
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