Other rupture of muscle (nontraumatic), right ankle and foot

This code signifies a spontaneous, non-traumatic tear or disruption of a muscle located in the right ankle or foot. This condition typically results from underlying muscle degeneration, overuse, or systemic diseases rather than an acute external injury.

Apply this code when documentation clearly indicates a muscle rupture in the right ankle or foot that is explicitly stated as non-traumatic. This includes ruptures due to chronic strain, degenerative changes, or inflammatory processes affecting the muscle tissue. Supporting documentation should rule out any external force or injury as the cause.

• Ensure the documentation specifies "nontraumatic" to differentiate from traumatic muscle ruptures.
• Verify the laterality is explicitly stated as "right ankle and foot"; avoid using unspecified laterality codes.
• Distinguish from muscle strains or sprains, which involve less severe damage and have different code assignments.