O12.21
O12.21: Gestational edema with proteinuria, first trimester
Billable / specific codeICD-10-CM
O12.21 is a billable, specific ICD-10-CM code for gestational edema with proteinuria, first trimester. It is valid for submission on a claim.
Check O12.21 with the rest of the claim: free scrubberRisk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
O12.21 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A57189Billing and Coding: Serum Magnesium
- A57643Billing and Coding: Lab: Cystatin C Measurement
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under O12.2
- O12.20Gestational edema with proteinuria, unspecified trimester
- O12.22Gestational edema with proteinuria, second trimester
- O12.23Gestational edema with proteinuria, third trimester
- O12.24Gestational edema with proteinuria, complicating childbirth
- O12.25Gestational edema with proteinuria, complicating the puerperium