Other specified bursopathies, left knee

This code signifies a non-specific inflammatory or degenerative condition affecting a bursa in the left knee, excluding common bursitides like prepatellar or infrapatellar. It covers various less common or ill-defined bursal pathologies not classified elsewhere.

Apply this code when documentation specifies a bursopathy of the left knee that doesn't fit into more specific ICD-10-CM categories (e.g., prepatellar bursitis, anserine bursitis). Supporting documentation should clearly indicate the left knee as the affected site and confirm a bursal involvement without a more precise diagnosis.

• Ensure the documentation explicitly states "left knee" to justify laterality.
• Avoid using this code if a more specific bursitis code (e.g., M70.42, M70.52) is applicable.
• Look for terms like "other bursitis," "unspecified bursopathy," or "bursitis NOS" of the left knee when a more precise diagnosis is unavailable.