O21.1
O21.1: Hyperemesis gravidarum with metabolic disturbance
Billable / specific codeICD-10-CM
O21.1 is a billable, specific ICD-10-CM code for hyperemesis gravidarum with metabolic disturbance. It is valid for submission on a claim.
Check O21.1 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as carbohydrate depletion
- Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as dehydration
- Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as electrolyte imbalance
Other codes that can never be billed with O21.1
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
O21.1 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A57189Billing and Coding: Serum Magnesium
Alphabetic index entries that lead here
- Hyperemesis›gravidarum›severe(with metabolic disturbance)
- Imbalance›electrolyte›due to hyperemesis gravidarum
- Hyperemesis›gravidarum›with›carbohydrate depletion
- Hyperemesis›gravidarum›with›dehydration
- Hyperemesis›gravidarum›with›electrolyte imbalance
- Hyperemesis›gravidarum›with›metabolic disturbance
Code history
Unchanged in every release from FY2024 to FY2027.