M63 Disorders of muscle in diseases classified elsewhere
ICD-10-CM category M63 sits in Chapter 13 (Diseases of the musculoskeletal system and connective tissue, M00-M99). It contains 24 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
M63.8 Disorders of muscle in diseases classified elsewhereM63.81 Disorders of muscle in diseases classd elswhr, shoulderM63.82 Disorders of muscle in diseases classd elswhr, upper armM63.83 Disorders of muscle in diseases classd elswhr, forearmM63.84 Disorders of muscle in diseases classified elsewhere, handM63.85 Disorders of muscle in diseases classified elsewhere, thighM63.86 Disorders of muscle in diseases classd elswhr, lower legM63.87 Disorders of muscle in diseases classd elswhr, ank/ft
Billable codes in M63
| Code | Description |
|---|---|
M63.80 | Disorders of muscle in diseases classified elsewhere, unspecified site |
M63.811 | Disorders of muscle in diseases classified elsewhere, right shoulder |
M63.812 | Disorders of muscle in diseases classified elsewhere, left shoulder |
M63.819 | Disorders of muscle in diseases classified elsewhere, unspecified shoulder |
M63.821 | Disorders of muscle in diseases classified elsewhere, right upper arm |
M63.822 | Disorders of muscle in diseases classified elsewhere, left upper arm |
M63.829 | Disorders of muscle in diseases classified elsewhere, unspecified upper arm |
M63.831 | Disorders of muscle in diseases classified elsewhere, right forearm |
M63.832 | Disorders of muscle in diseases classified elsewhere, left forearm |
M63.839 | Disorders of muscle in diseases classified elsewhere, unspecified forearm |
M63.841 | Disorders of muscle in diseases classified elsewhere, right hand |
M63.842 | Disorders of muscle in diseases classified elsewhere, left hand |
M63.849 | Disorders of muscle in diseases classified elsewhere, unspecified hand |
M63.851 | Disorders of muscle in diseases classified elsewhere, right thigh |
M63.852 | Disorders of muscle in diseases classified elsewhere, left thigh |
M63.859 | Disorders of muscle in diseases classified elsewhere, unspecified thigh |
M63.861 | Disorders of muscle in diseases classified elsewhere, right lower leg |
M63.862 | Disorders of muscle in diseases classified elsewhere, left lower leg |
M63.869 | Disorders of muscle in diseases classified elsewhere, unspecified lower leg |
M63.871 | Disorders of muscle in diseases classified elsewhere, right ankle and foot |
M63.872 | Disorders of muscle in diseases classified elsewhere, left ankle and foot |
M63.879 | Disorders of muscle in diseases classified elsewhere, unspecified ankle and foot |
M63.88 | Disorders of muscle in diseases classified elsewhere, other site |
M63.89 | Disorders of muscle in diseases classified elsewhere, multiple sites |
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