Gestational [pregnancy-induced] edema and proteinuria without hypertension (O12) ICD-10-CM
The O12 code range covers gestational [pregnancy-induced] edema and proteinuria without hypertension with 22 ICD-10-CM diagnosis codes. 18 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the O12 Range 22 codes · 18 billable
- O12 Gestational [pregnancy-induced] edema and proteinuria without hypertensionNon-billable
- O12.0 Gestational edemaNon-billable
- O12.00 Gestational edema, unspecified trimester
- O12.01 Gestational edema, first trimester
- O12.02 Gestational edema, second trimester
- O12.03 Gestational edema, third trimester
- O12.04 Gestational edema, complicating childbirth
- O12.05 Gestational edema, complicating the puerperium
- O12.1 Gestational proteinuriaNon-billable
- O12.10 Gestational proteinuria, unspecified trimester
- O12.11 Gestational proteinuria, first trimester
- O12.12 Gestational proteinuria, second trimester
- O12.13 Gestational proteinuria, third trimester
- O12.14 Gestational proteinuria, complicating childbirth
- O12.15 Gestational proteinuria, complicating the puerperium
- O12.2 Gestational edema with proteinuriaNon-billable
- O12.20 Gestational edema with proteinuria, unspecified trimester
- O12.21 Gestational edema with proteinuria, first trimester
- O12.22 Gestational edema with proteinuria, second trimester
- O12.23 Gestational edema with proteinuria, third trimester
- O12.24 Gestational edema with proteinuria, complicating childbirth
- O12.25 Gestational edema with proteinuria, complicating the puerperium
About the O12 Code Range
The ICD-10 code O12 and its subcodes identify various forms of gestational edema and proteinuria that occur during pregnancy without the presence of hypertension. These codes are used to specify the timing and nature of these pregnancy-induced conditions.
The section covers conditions such as gestational edema and gestational proteinuria, which may be recorded independently or together, indicated by codes from O12.0 to O12.2 with additional specificity by trimester or related to childbirth and the postpartum period. For example, O12.00 represents gestational edema without hypertension in any trimester, sometimes called “gestational edema without hypertension,” while O12.10 denotes gestational proteinuria, also known as “persistent gestational proteinuria” or “albuminuria in pregnancy without hypertension.” The combined condition of gestational edema with proteinuria—also recognized as “pregnancy-induced edema and proteinuria without hypertension”—is coded under O12.20 and related extensions.
These ICD-10 codes help healthcare providers and coders accurately document and manage pregnancy complications that involve swelling and abnormal protein in urine but exclude high blood pressure, aiding in proper tracking and treatment during different pregnancy stages.
Questions About This Page
How many billable codes are in the O12 range?
Of the 22 codes in this range, 18 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the O12 range classify?
The range classifies gestational [pregnancy-induced] edema and proteinuria without hypertension. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
