Acute nephritic syndrome w diffuse mesangiocap glomrlneph

This code represents a specific form of acute nephritic syndrome characterized by inflammation of the kidney's glomeruli, specifically involving diffuse mesangiocapillary glomerulonephritis. This condition typically presents with sudden onset of hematuria, proteinuria, hypertension, and renal impairment. It indicates a rapid decline in kidney function due to this particular histological pattern of glomerular injury.

Use this code when documentation clearly specifies acute nephritic syndrome and a renal biopsy or other diagnostic findings confirm diffuse mesangiocapillary glomerulonephritis as the underlying cause. This diagnosis is often made following a kidney biopsy that reveals characteristic mesangial and capillary changes. It is appropriate for patients presenting with the classic symptoms of acute nephritic syndrome where this specific pathology has been identified.

• Ensure the documentation explicitly states "diffuse mesangiocapillary glomerulonephritis" in conjunction with acute nephritic syndrome.
• Carefully review the "Excludes1" notes to avoid co-coding with C3 glomerulonephritis or C3 glomerulopathy, as these are distinct conditions.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any associated manifestations or complications.