Chronic glomerulonephritis with lesion of proliferative glomerulonephritis

This code represents a long-standing inflammation of the kidney's filtering units (glomeruli) characterized by the specific pathological finding of proliferative changes. This indicates an increase in the number of glomerular cells, often leading to impaired kidney function. It signifies a chronic disease process with a distinct histological pattern.

Use this code when documentation clearly indicates a diagnosis of chronic glomerulonephritis and a renal biopsy or pathology report confirms the presence of proliferative lesions. This code is appropriate for patients with persistent symptoms or laboratory findings consistent with chronic kidney disease, where the underlying etiology is identified as proliferative glomerulonephritis.

• Ensure documentation explicitly states "chronic" and specifies "proliferative" as the lesion type.
• Do not use this code for acute glomerulonephritis or other non-proliferative forms of chronic glomerulonephritis.
• Always review pathology reports for definitive lesion identification to support this specific diagnosis.