Gestational proteinuria, second trimester

This code signifies the presence of proteinuria that develops during pregnancy, specifically identified in the second trimester, without evidence of hypertension. It indicates a renal finding during gestation that requires monitoring but is not yet associated with pre-eclampsia or other hypertensive disorders.

Use this code when documentation confirms proteinuria (e.g., urine dipstick positive for protein, 24-hour urine protein >300mg) in a pregnant patient during their second trimester, and there is no co-occurring diagnosis of gestational hypertension or pre-eclampsia. Supporting documentation includes urinalysis results and gestational age at the time of diagnosis.

• Do not use this code if the patient also has gestational hypertension or pre-eclampsia; instead, code the more specific hypertensive disorder.
• Ensure the documentation clearly specifies "second trimester" for accurate code assignment.
• This code is often sequenced after the primary obstetric encounter code (e.g., Z34.xx for supervision of normal pregnancy).