Nephrotic syndrome with other morphologic changes

This code signifies nephrotic syndrome where renal biopsy reveals specific structural alterations in the glomeruli or tubules that are not classified as minimal change, focal segmental glomerulosclerosis, membranous nephropathy, or diffuse mesangial proliferative glomerulonephritis. These "other morphologic changes" encompass a variety of less common or atypical histological findings associated with nephrotic range proteinuria.

Apply this code when a patient presents with nephrotic syndrome and a renal biopsy report documents morphologic changes that do not fit into the more specific categories of N04.0-N04.7 or N04.9. Documentation should clearly state the presence of nephrotic syndrome and describe the specific "other" morphologic findings identified by renal pathology.

• Ensure the pathology report explicitly details the "other" morphologic changes; avoid using this code if a more specific N04 subcategory is supported.
• Do not use this code if the biopsy shows no specific morphologic changes (N04.9) or if the changes are consistent with minimal change disease (N04.0).
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any associated manifestations or complications.