Muscle wasting and atrophy, NEC, unsp hand

This code signifies a general decrease in muscle mass and size in an unspecified hand, not attributable to a specific disease process or condition classified elsewhere. It indicates a non-specific muscular atrophy affecting the hand, without further detail regarding the cause or specific muscles involved.

Use this code when documentation clearly states muscle wasting or atrophy of the hand, but the specific etiology (e.g., neurological disorder, disuse, injury) is unknown or not documented. It is appropriate when the laterality of the hand is not specified in the clinical record.

• Avoid using this code if a more specific cause of muscle atrophy (e.g., M62.81 for muscle weakness, M62.83 for sarcopenia) is documented.
• Query the provider for laterality (left, right, bilateral) if possible, to allow for a more specific code (M62.541, M62.542, M62.54).
• Always look for underlying conditions that may be causing the atrophy; code those first if they are the primary reason for the encounter.