| M63 | Disorders of muscle in diseases classified elsewhere | NON-BILLABLE CODE |
| M63.8 | Disorders of muscle in diseases classified elsewhere | NON-BILLABLE CODE |
| M63.80 | Disorders of muscle in diseases classified elsewhere, unspecified site | BILLABLE CODE |
| M63.81 | Disorders of muscle in diseases classified elsewhere, shoulder | NON-BILLABLE CODE |
| M63.811 | Disorders of muscle in diseases classified elsewhere, right shoulder | BILLABLE CODE |
| M63.812 | Disorders of muscle in diseases classified elsewhere, left shoulder | BILLABLE CODE |
| M63.819 | Disorders of muscle in diseases classified elsewhere, unspecified shoulder | BILLABLE CODE |
| M63.82 | Disorders of muscle in diseases classified elsewhere, upper arm | NON-BILLABLE CODE |
| M63.821 | Disorders of muscle in diseases classified elsewhere, right upper arm | BILLABLE CODE |
| M63.822 | Disorders of muscle in diseases classified elsewhere, left upper arm | BILLABLE CODE |
| M63.829 | Disorders of muscle in diseases classified elsewhere, unspecified upper arm | BILLABLE CODE |
| M63.83 | Disorders of muscle in diseases classified elsewhere, forearm | NON-BILLABLE CODE |
| M63.831 | Disorders of muscle in diseases classified elsewhere, right forearm | BILLABLE CODE |
| M63.839 | Disorders of muscle in diseases classified elsewhere, unspecified forearm | BILLABLE CODE |
| M63.84 | Disorders of muscle in diseases classified elsewhere, hand | NON-BILLABLE CODE |
| M63.841 | Disorders of muscle in diseases classified elsewhere, right hand | BILLABLE CODE |
| M63.842 | Disorders of muscle in diseases classified elsewhere, left hand | BILLABLE CODE |
| M63.849 | Disorders of muscle in diseases classified elsewhere, unspecified hand | BILLABLE CODE |
| M63.85 | Disorders of muscle in diseases classified elsewhere, thigh | NON-BILLABLE CODE |
| M63.851 | Disorders of muscle in diseases classified elsewhere, right thigh | BILLABLE CODE |
| M63.852 | Disorders of muscle in diseases classified elsewhere, left thigh | BILLABLE CODE |
| M63.859 | Disorders of muscle in diseases classified elsewhere, unspecified thigh | BILLABLE CODE |
| M63.86 | Disorders of muscle in diseases classified elsewhere, lower leg | NON-BILLABLE CODE |
| M63.861 | Disorders of muscle in diseases classified elsewhere, right lower leg | BILLABLE CODE |
| M63.862 | Disorders of muscle in diseases classified elsewhere, left lower leg | BILLABLE CODE |
| M63.869 | Disorders of muscle in diseases classified elsewhere, unspecified lower leg | BILLABLE CODE |
| M63.87 | Disorders of muscle in diseases classified elsewhere, ankle and foot | NON-BILLABLE CODE |
| M63.871 | Disorders of muscle in diseases classified elsewhere, right ankle and foot | BILLABLE CODE |
| M63.872 | Disorders of muscle in diseases classified elsewhere, left ankle and foot | BILLABLE CODE |
| M63.879 | Disorders of muscle in diseases classified elsewhere, unspecified ankle and foot | BILLABLE CODE |
| M63.88 | Disorders of muscle in diseases classified elsewhere, other site | BILLABLE CODE |
| M63.89 | Disorders of muscle in diseases classified elsewhere, multiple sites | BILLABLE CODE |
