Hereditary nephropathy, NEC w diffuse mesangiocap glomrlneph

This diagnosis code identifies a genetic kidney disorder characterized by inherited abnormalities in renal structure and function, specifically presenting with diffuse mesangiocapillary glomerulonephritis. This form of glomerulonephritis involves widespread proliferation of mesangial cells and thickening of capillary walls within the glomeruli, leading to impaired kidney filtration.

Use this code when documentation clearly indicates a hereditary nephropathy alongside a biopsy-confirmed diagnosis of diffuse mesangiocapillary glomerulonephritis. This applies to patients with a family history of kidney disease and clinical findings consistent with this specific glomerular pathology.

• Ensure the documentation explicitly states "diffuse mesangiocapillary glomerulonephritis" as the associated glomerular lesion.
• Do not code this with N07.A (Hereditary nephropathy with C3 glomerulonephritis or C3 glomerulopathy) as per the Excludes1 note.
• Look for genetic testing results or a strong family history of kidney disease to support the "hereditary" component.