Chronic nephritic syndrome w diffuse crescentic glomrlneph

This code signifies a persistent inflammatory kidney disease characterized by the presence of crescent-shaped lesions in the glomeruli. It represents a severe form of chronic nephritic syndrome where extensive crescent formation indicates significant glomerular damage and often progressive renal dysfunction.

Apply this code when documentation explicitly states chronic nephritic syndrome with diffuse crescentic glomerulonephritis. This diagnosis is typically confirmed by renal biopsy findings showing widespread crescent formation (affecting >50% of glomeruli) in a patient with ongoing signs of nephritic syndrome, such as hematuria, proteinuria, hypertension, and renal impairment.

• Ensure documentation specifies "chronic" and "diffuse crescentic" to differentiate from acute or focal forms.
• Do not use this code for acute crescentic glomerulonephritis; refer to codes in the N00 category.
• Consider sequencing this code as a primary diagnosis when it is the main reason for the encounter, especially for management of the kidney disease.