O12: Gestational [pregnancy-induced] edema and proteinuria without hypertension
Codes under O12 (Gestational [pregnancy-induced] edema and proteinuria without hypertension). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| O12.0 | Gestational edema | — |
| O12.0 | Gestational edema | — |
| O12.00 | Gestational edema, unspecified trimester | ✓ |
| O12.00 | Gestational edema, unspecified trimester | ✓ |
| O12.01 | Gestational edema, first trimester | ✓ |
| O12.01 | Gestational edema, first trimester | ✓ |
| O12.1 | Gestational proteinuria | — |
| O12.1 | Gestational proteinuria | — |
| O12.02 | Gestational edema, second trimester | ✓ |
| O12.02 | Gestational edema, second trimester | ✓ |
| O12.2 | Gestational edema with proteinuria | — |
| O12.2 | Gestational edema with proteinuria | — |
| O12.03 | Gestational edema, third trimester | ✓ |
| O12.03 | Gestational edema, third trimester | ✓ |
| O12.04 | Gestational edema, complicating childbirth | ✓ |
| O12.04 | Gestational edema, complicating childbirth | ✓ |
| O12.05 | Gestational edema, complicating the puerperium | ✓ |
| O12.05 | Gestational edema, complicating the puerperium | ✓ |
| O12.10 | Gestational proteinuria, unspecified trimester | ✓ |
| O12.10 | Gestational proteinuria, unspecified trimester | ✓ |
| O12.11 | Gestational proteinuria, first trimester | ✓ |
| O12.11 | Gestational proteinuria, first trimester | ✓ |
| O12.12 | Gestational proteinuria, second trimester | ✓ |
| O12.12 | Gestational proteinuria, second trimester | ✓ |
| O12.13 | Gestational proteinuria, third trimester | ✓ |
| O12.13 | Gestational proteinuria, third trimester | ✓ |
| O12.14 | Gestational proteinuria, complicating childbirth | ✓ |
| O12.14 | Gestational proteinuria, complicating childbirth | ✓ |
| O12.15 | Gestational proteinuria, complicating the puerperium | ✓ |
| O12.15 | Gestational proteinuria, complicating the puerperium | ✓ |
| O12.20 | Gestational edema with proteinuria, unspecified trimester | ✓ |
| O12.20 | Gestational edema with proteinuria, unspecified trimester | ✓ |
| O12.21 | Gestational edema with proteinuria, first trimester | ✓ |
| O12.21 | Gestational edema with proteinuria, first trimester | ✓ |
| O12.22 | Gestational edema with proteinuria, second trimester | ✓ |
| O12.22 | Gestational edema with proteinuria, second trimester | ✓ |
| O12.23 | Gestational edema with proteinuria, third trimester | ✓ |
| O12.23 | Gestational edema with proteinuria, third trimester | ✓ |
| O12.24 | Gestational edema with proteinuria, complicating childbirth | ✓ |
| O12.24 | Gestational edema with proteinuria, complicating childbirth | ✓ |
| O12.25 | Gestational edema with proteinuria, complicating the puerperium | ✓ |
| O12.25 | Gestational edema with proteinuria, complicating the puerperium | ✓ |
Frequently asked questions
What is ICD-10-CM code O12?
O12 is an ICD-10-CM category covering Gestational [pregnancy-induced] edema and proteinuria without hypertension. It contains 42 more specific diagnosis codes, 36 of which are billable.
Is O12 a billable code?
No — O12 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example O12.0 — Gestational edema). 36 of the 42 codes under O12 are billable.
What codes fall under O12?
O12 includes O12.0, O12.0, O12.00, O12.00, O12.01, plus 37 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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