Chronic nephritic syndrome with other morphologic changes

This code signifies a chronic inflammatory condition of the kidney's filtering units (glomeruli) that has progressed over time, leading to persistent proteinuria, hematuria, and often renal insufficiency. The "other morphologic changes" specify that the underlying kidney tissue damage is not one of the more common, specifically classified types of chronic nephritic syndrome.

Use this code when documentation indicates a chronic nephritic syndrome where the specific histological findings, such as those from a kidney biopsy, do not fit into other defined categories (e.g., rapidly progressive, membranous, minimal change). This diagnosis is typically made by a nephrologist based on clinical presentation and biopsy results.

• Always look for specific biopsy results or nephrologist's diagnostic statements detailing the "other morphologic changes."
• Do not use this code if a more specific type of chronic nephritic syndrome is documented (e.g., N03.2 for diffuse membranous glomerulonephritis).
• Code any associated chronic kidney disease (CKD) stages separately, as this code describes the underlying etiology.