Osteitis condensans, unspecified ankle and foot

This code describes a non-inflammatory sclerosis of bone, specifically affecting an unspecified ankle or foot. It represents a localized increase in bone density, often appearing as a radiopaque area on imaging, without clear evidence of infection or malignancy.

Assign this code when documentation indicates osteitis condensans in the ankle or foot, and the specific laterality (right or left) is not specified. This diagnosis is typically made based on radiographic findings showing increased bone density in the absence of other pathology.

• Ensure the documentation clearly states "osteitis condensans" and specifies the ankle or foot, without laterality.
• Do not use this code if an infectious or neoplastic process is identified as the cause of bone sclerosis.
• Consider codes for specified laterality (M85.371, M85.372) if the documentation allows for more precise anatomical assignment.