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919 Unspecified pre-existing hypertension complicating pregnancy, unspecified trimester
- O10.92 Unspecified pre-existing hypertension complicating childbirth
- O10.93 Unspecified pre-existing hypertension complicating the puerperium
O11 Pre-existing hypertensive disorder with superimposed proteinuria
- Includes: Conditions in Ol0 complicated by increased proteinuria
- Superimposed pre-eclampsia
- Use additional code from O10 to identify the type of hypertension
- O11.1 Pre-existing hypertensive disorder with superimposed proteinuria, first trimester
- O11.2 Pre-existing hypertensive disorder with superimposed proteinuria, second trimester
- O11.3 Pre-existing hypertensive disorder with superimposed proteinuria, third trimester
- O11.9 Pre-existing hypertensive disorder with superimposed proteinuria, unspecified trimester
O12 Gestational [pregnancy-induced] edema and proteinuria without hypertension
- O12.0 Gestational edema
- O12.00 Gestational edema, unspecified trimester
- O12.01 Gestational edema, first trimester
- O12.02 Gestational edema, second trimester
- O12.03 Gestational edema, third trimester
- O12.1 Gestational proteinuria
- O12.10 Gestational proteinuria, unspecified trimester
- O12.11 Gestational proteinuria, first trimester
- O12.12 Gestational proteinuria, second trimester
- O12.13 Gestational proteinuria, third trimester
- O12.2 Gestational edema with proteinuria
- 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
O13 Gestational [pregnancy-induced] hypertension without significant proteinuria
- Includes: gestational hypertension NOS
- O13.1 Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
- O13.