Muscle wasting and atrophy, NEC, unsp shoulder

This code signifies a reduction in muscle mass and size in an unspecified shoulder, not attributable to a neurological disease, disuse, or other specific causes. It indicates a generalized muscle atrophy or wasting process affecting the shoulder region without a more precise etiology.

Apply this code when documentation clearly states muscle wasting or atrophy of the shoulder, but the specific cause (e.g., disuse, neurogenic, post-traumatic) is not identified or is explicitly ruled out. This is appropriate when the provider has not specified which shoulder is affected.

• Ensure documentation specifies "unspecified shoulder" or lacks laterality for the atrophy.
• Avoid using this code if a more specific cause (e.g., disuse atrophy, neurogenic atrophy) or a more specific shoulder (left/right) is documented.
• Always query the provider for a more specific diagnosis and laterality if possible, as this code represents a less precise condition.