Nephrotic syndrome w focal and segmental glomerular lesions

This code signifies nephrotic syndrome, a kidney disorder characterized by significant proteinuria, hypoalbuminemia, edema, and hyperlipidemia, specifically when the underlying kidney pathology is identified as focal and segmental glomerular sclerosis (FSGS). FSGS involves scarring in some, but not all, glomeruli (focal) and only affects parts of those glomeruli (segmental).

Use this code when documentation clearly states a diagnosis of nephrotic syndrome and a renal biopsy or other diagnostic studies confirm the presence of focal and segmental glomerular lesions. This code is appropriate for both primary (idiopathic) and secondary forms of FSGS presenting with nephrotic syndrome.

• Ensure the documentation explicitly links the nephrotic syndrome to focal and segmental glomerular lesions; avoid assuming the underlying pathology.
• Distinguish this from other forms of nephrotic syndrome with different underlying glomerular pathologies (e.g., minimal change disease, membranous nephropathy).
• Code any associated complications of nephrotic syndrome, such as acute kidney injury or thrombosis, as secondary diagnoses.