Hereditary nephropathy, NEC w unsp morphologic lesions

This code identifies a genetic kidney disorder characterized by inherited structural and functional abnormalities of the nephrons, where the specific type of hereditary nephropathy is not further specified. It also indicates that the precise microscopic changes within the kidney tissue (morphologic lesions) have not been determined or documented. This diagnosis suggests a familial predisposition to kidney disease without a definitive genetic or pathological classification.

Use this code when documentation indicates a hereditary form of nephropathy, but the specific genetic mutation or syndrome is unknown, and a renal biopsy report does not provide a definitive morphologic diagnosis. This is appropriate when a patient presents with chronic kidney disease with a strong family history of renal failure, and more specific hereditary nephropathy codes (e.g., Alport syndrome) have been ruled out or are not yet confirmed.

• Ensure documentation explicitly states "hereditary" or "familial" nephropathy.
• Avoid using this code if a more specific hereditary nephropathy (e.g., Alport syndrome, Fabry disease) is documented.
• Sequence this code with an appropriate chronic kidney disease (CKD) stage code (N18.1-N18.6) to fully capture the patient's condition.