Muscle wasting and atrophy, NEC, back, unspecified level

This diagnosis code signifies a reduction in muscle mass and size in the back region, not due to a specific neurological disease or injury. It indicates a generalized or localized atrophy of back muscles without a more specific underlying cause identified.

Use this code when documentation specifies muscle wasting or atrophy of the back, and the physician has not attributed it to a neurological condition, disuse, or a specific injury. This is appropriate when the exact level of the back affected is not specified in the medical record.

• Always seek more specific documentation regarding the cause and location of muscle atrophy if available, as more specific codes may apply.
• Do not use this code if the atrophy is secondary to a neurological condition (e.g., poliomyelitis, muscular dystrophy) or disuse, as those conditions have more specific codes.
• Sequence this code as a secondary diagnosis if the muscle wasting is a symptom of another primary condition.