Other rupture of muscle (nontraumatic), unsp upper arm

This code signifies a spontaneous, non-traumatic tear or disruption of muscle tissue in an unspecified area of the upper arm. It indicates a rupture that is not caused by an external injury, but rather by internal factors such as overuse, degeneration, or disease.

Apply this code when documentation clearly states a non-traumatic muscle rupture in the upper arm, and the specific muscle involved is not identified. This is appropriate for conditions like spontaneous biceps tendon rupture or other intrinsic muscle tears without an external cause.

• Ensure documentation explicitly states "nontraumatic" or "spontaneous" to differentiate from traumatic muscle injuries.
• Avoid using this code if a specific muscle (e.g., biceps, triceps) is identified; instead, use a more specific code from the M62.11- or M62.13- series.
• If the laterality (right or left) of the upper arm is known, use the appropriate M62.121 or M62.122 code instead of this unspecified option.