Other rupture of muscle (nontraumatic), other site

This code signifies a spontaneous, non-traumatic tear or disruption of muscle tissue in an anatomical location not specifically classified elsewhere. It represents a muscle rupture that is not caused by an external force, injury, or accident. This condition often results from underlying muscle degeneration, overuse, or systemic disease.

Apply this code when documentation clearly indicates a non-traumatic muscle rupture in a site other than the forearm, lower leg, or specific named muscles with their own codes. This code is appropriate when the physician explicitly states the rupture was spontaneous or atraumatic, and the affected muscle is not more precisely categorized by another ICD-10-CM code.

• Ensure documentation explicitly states "nontraumatic" or "spontaneous" rupture to differentiate from traumatic muscle injuries.
• Verify the specific muscle involved; if a more precise code exists for that muscle and site, use that instead.
• Do not use this code for muscle strains or tears that are traumatic in nature; those fall under S codes.