Infective myositis, unspecified thigh

This code signifies an inflammation of the muscle tissue in the thigh due to an infectious agent, without further specification of the exact thigh affected. It indicates a bacterial, viral, fungal, or parasitic infection directly impacting the muscle fibers. The condition typically presents with pain, swelling, and tenderness in the affected thigh.

This code is appropriate when documentation confirms infective myositis of the thigh, but the specific laterality (right or left) is not documented or is unknown. It should be used when the physician's notes clearly state "infective myositis of the thigh" without specifying which thigh. Supporting documentation would include clinical findings consistent with infection and muscle inflammation, such as elevated inflammatory markers and imaging results.

• Avoid using this code if the laterality of the affected thigh is documented (e.g., right or left); instead, use the more specific M60.051 or M60.052.
• Ensure the documentation explicitly states "infective myositis" rather than general myositis, which would lead to a different code category (e.g., M60.9- for unspecified myositis).
• Always attempt to query the provider for clarification on laterality if it is missing, to allow for more specific coding.