Is M63 a billable code?
No. M63 is a header code that groups 24 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
M63: Disorders of muscle in diseases classified elsewhere
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
M63 groups related diagnoses under disorders of muscle in diseases classified elsewhere. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under M63
- M63.80Disorders of muscle in diseases classified elsewhere, unspecified site
- M63.811Disorders of muscle in diseases classified elsewhere, right shoulder
- M63.812Disorders of muscle in diseases classified elsewhere, left shoulder
- M63.819Disorders of muscle in diseases classified elsewhere, unspecified shoulder
- M63.821Disorders of muscle in diseases classified elsewhere, right upper arm
- M63.822Disorders of muscle in diseases classified elsewhere, left upper arm
- M63.829Disorders of muscle in diseases classified elsewhere, unspecified upper arm
- M63.831Disorders of muscle in diseases classified elsewhere, right forearm
- M63.832Disorders of muscle in diseases classified elsewhere, left forearm
- M63.839Disorders of muscle in diseases classified elsewhere, unspecified forearm
- M63.841Disorders of muscle in diseases classified elsewhere, right hand
- M63.842Disorders of muscle in diseases classified elsewhere, left hand
- M63.849Disorders of muscle in diseases classified elsewhere, unspecified hand
- M63.851Disorders of muscle in diseases classified elsewhere, right thigh
- M63.852Disorders of muscle in diseases classified elsewhere, left thigh
- M63.859Disorders of muscle in diseases classified elsewhere, unspecified thigh
- M63.861Disorders of muscle in diseases classified elsewhere, right lower leg
- M63.862Disorders of muscle in diseases classified elsewhere, left lower leg
- M63.869Disorders of muscle in diseases classified elsewhere, unspecified lower leg
- M63.871Disorders of muscle in diseases classified elsewhere, right ankle and foot
- M63.872Disorders of muscle in diseases classified elsewhere, left ankle and foot
- M63.879Disorders of muscle in diseases classified elsewhere, unspecified ankle and foot
- M63.88Disorders of muscle in diseases classified elsewhere, other site
- M63.89Disorders of muscle in diseases classified elsewhere, multiple sites
M63 questions
What does M63 mean?
M63 is the ICD-10-CM code for Disorders of muscle in diseases classified elsewhere. It is in chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.