Glomerular disorders in diseases classified elsewhere

This code describes glomerular disorders that arise as a manifestation of another underlying systemic disease. It indicates damage to the kidney's filtering units (glomeruli) that is secondary to a primary condition affecting other body systems.

Use this code when documentation clearly links a glomerular disorder to an underlying systemic disease, and the specific underlying disease is also coded. This code is appropriate when the glomerular involvement is not explicitly classified under the primary disease's specific kidney manifestation codes.

• Always code the underlying systemic disease first, followed by this code to indicate the renal manifestation.
• Carefully review the "Excludes1" list to ensure the specific glomerular disorder is not already covered by a more precise code linked to the underlying disease.
• Documentation must clearly state the connection between the systemic disease and the glomerular involvement for accurate coding.