Calcifcn and ossifictn of muscles assoc w burns, oth site

This code describes the pathological hardening of muscle tissue due to calcium deposits (calcification) or bone formation (ossification) that develops as a complication of a burn injury. This condition, often referred to as heterotopic ossification, specifically affects muscles in anatomical locations other than the major joints (e.g., shoulder, elbow, hip, knee, ankle, wrist).

Assign this code when documentation clearly indicates calcification or ossification within muscle tissue directly attributable to a burn, and the affected site is not one of the specified major joints. Supporting documentation should include imaging reports (X-ray, CT scan) confirming the presence of calcification or ossification, along with a history of a burn injury.

• Always sequence the burn code (T20-T31) as the primary diagnosis, followed by this code as a secondary diagnosis to fully describe the condition.
• Distinguish this from M61.30-M61.37, which specify calcification and ossification of muscles associated with burns at major joint sites.
• Ensure the documentation explicitly links the muscle changes to the burn injury; otherwise, consider other calcification/ossification codes not related to burns.