O21.1

✓ Billable

Hyperemesis gravidarum with metabolic disturbance

Pregnancy, childbirth and the puerperium (O00-O9A)

Also Known As

Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as carbohydrate depletionHyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as dehydrationHyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as electrolyte imbalance

✅ No additional coding notes for O21.1

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Code Information

CodeO21.1

BillableYes

ParentO21

CategoryPregnancy, childbirth and the puerperium (O00-O9A)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)