Other rupture of muscle (nontraumatic), unspecified site

This code signifies a spontaneous, non-traumatic tearing or disruption of muscle fibers. It represents a muscle rupture that is not caused by an external injury or force.

Apply this code when documentation clearly indicates a muscle rupture occurred without an identifiable traumatic event. This includes conditions like spontaneous muscle tears due to underlying disease processes, severe muscle spasms, or extreme exertion without direct trauma. Documentation should specify "nontraumatic" or "spontaneous" rupture.

• Do not use this code if the documentation indicates any form of trauma, even minor.
• Always attempt to code to a more specific site if documented (e.g., M62.11- for forearm, M62.12- for upper arm).
• Review the patient's medical history for underlying conditions (e.g., myopathy, connective tissue disorders) that may predispose to spontaneous rupture, and code them as secondary diagnoses if applicable.