Gestational proteinuria, unspecified trimester

This code signifies the presence of proteinuria that develops during pregnancy, without an accompanying diagnosis of hypertension or pre-eclampsia. It indicates protein in the urine of a pregnant patient, where the specific trimester of onset is not documented or specified. This condition is distinct from pre-eclampsia, which involves both proteinuria and hypertension.

Use this code when documentation indicates proteinuria in a pregnant patient, and there is no mention of elevated blood pressure or other signs of pre-eclampsia. This code is appropriate when the provider explicitly states "gestational proteinuria" without further specification of the trimester. Supporting documentation would include urinalysis results showing proteinuria and a physician's note confirming the diagnosis in a pregnant patient.

• Do not use this code if the patient also has hypertension; consider codes for pre-eclampsia (O14.-) or gestational hypertension with proteinuria (O13.-).
• If the trimester is specified in the documentation, use the more specific codes O12.11 (first trimester), O12.12 (second trimester), or O12.13 (third trimester).
• Always sequence this code after the primary obstetric code (e.g., Z3A.- for weeks of gestation).