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ICD-10-CM · FY 2026 APRIL UPDATE

M63

Disorders of muscle in diseases classified elsewhere

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
M63.8Disorders of muscle in diseases classified elsewhereCategory
M63.80Disorders of muscle in diseases classified elsewhere, unspecified siteBillable
M63.81Disorders of muscle in diseases classified elsewhere, shoulderCategory
M63.811Disorders of muscle in diseases classified elsewhere, right shoulderBillable
M63.812Disorders of muscle in diseases classified elsewhere, left shoulderBillable
M63.819Disorders of muscle in diseases classified elsewhere, unspecified shoulderBillable
M63.82Disorders of muscle in diseases classified elsewhere, upper armCategory
M63.821Disorders of muscle in diseases classified elsewhere, right upper armBillable
M63.822Disorders of muscle in diseases classified elsewhere, left upper armBillable
M63.829Disorders of muscle in diseases classified elsewhere, unspecified upper armBillable
M63.83Disorders of muscle in diseases classified elsewhere, forearmCategory
M63.831Disorders of muscle in diseases classified elsewhere, right forearmBillable
M63.832Disorders of muscle in diseases classified elsewhere, left forearmBillable
M63.839Disorders of muscle in diseases classified elsewhere, unspecified forearmBillable
M63.84Disorders of muscle in diseases classified elsewhere, handCategory
M63.841Disorders of muscle in diseases classified elsewhere, right handBillable
M63.842Disorders of muscle in diseases classified elsewhere, left handBillable
M63.849Disorders of muscle in diseases classified elsewhere, unspecified handBillable
M63.85Disorders of muscle in diseases classified elsewhere, thighCategory
M63.851Disorders of muscle in diseases classified elsewhere, right thighBillable
M63.852Disorders of muscle in diseases classified elsewhere, left thighBillable
M63.859Disorders of muscle in diseases classified elsewhere, unspecified thighBillable
M63.86Disorders of muscle in diseases classified elsewhere, lower legCategory
M63.861Disorders of muscle in diseases classified elsewhere, right lower legBillable
M63.862Disorders of muscle in diseases classified elsewhere, left lower legBillable
M63.869Disorders of muscle in diseases classified elsewhere, unspecified lower legBillable
M63.87Disorders of muscle in diseases classified elsewhere, ankle and footCategory
M63.871Disorders of muscle in diseases classified elsewhere, right ankle and footBillable
M63.872Disorders of muscle in diseases classified elsewhere, left ankle and footBillable
M63.879Disorders of muscle in diseases classified elsewhere, unspecified ankle and footBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.