| O12 | Gestational [pregnancy-induced] edema and proteinuria without hypertension | NON-BILLABLE CODE |
| O12.0 | Gestational edema | NON-BILLABLE CODE |
| O12.00 | Gestational edema, unspecified trimester | BILLABLE CODE |
| O12.01 | Gestational edema, first trimester | BILLABLE CODE |
| O12.02 | Gestational edema, second trimester | BILLABLE CODE |
| O12.03 | Gestational edema, third trimester | BILLABLE CODE |
| O12.04 | Gestational edema, complicating childbirth | BILLABLE CODE |
| O12.05 | Gestational edema, complicating the puerperium | BILLABLE CODE |
| O12.1 | Gestational proteinuria | NON-BILLABLE CODE |
| O12.10 | Gestational proteinuria, unspecified trimester | BILLABLE CODE |
| O12.11 | Gestational proteinuria, first trimester | BILLABLE CODE |
| O12.12 | Gestational proteinuria, second trimester | BILLABLE CODE |
| O12.13 | Gestational proteinuria, third trimester | BILLABLE CODE |
| O12.14 | Gestational proteinuria, complicating childbirth | BILLABLE CODE |
| O12.15 | Gestational proteinuria, complicating the puerperium | BILLABLE CODE |
| O12.2 | Gestational edema with proteinuria | NON-BILLABLE CODE |
| O12.20 | Gestational edema with proteinuria, unspecified trimester | BILLABLE CODE |
| O12.21 | Gestational edema with proteinuria, first trimester | BILLABLE CODE |
| O12.23 | Gestational edema with proteinuria, third trimester | BILLABLE CODE |
| O12.24 | Gestational edema with proteinuria, complicating childbirth | BILLABLE CODE |
| O12.25 | Gestational edema with proteinuria, complicating the puerperium | BILLABLE CODE |
