ICD-10 Code for Hyperemesis
The ICD-10-CM code for hyperemesis is R11.10 — Vomiting, unspecified. This is the code the Alphabetic Index gives for hyperemesis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
R11.10 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which hyperemesis code should you use?
The Alphabetic Index lists 6 codes under Hyperemesis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
Hyperemesis gravidarum
| severe | O21.1 | Hyperemesis gravidarum with metabolic disturbance | |
| with › carbohydrate depletion | O21.1 | Hyperemesis gravidarum with metabolic disturbance | |
| with › dehydration | O21.1 | Hyperemesis gravidarum with metabolic disturbance | |
| with › electrolyte imbalance | O21.1 | Hyperemesis gravidarum with metabolic disturbance | |
| with › metabolic disturbance | O21.1 | Hyperemesis gravidarum with metabolic disturbance |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources