M63.89 – Disorders of muscle in diseases classified elsewhere, multiple sites

ICD-10-CM 2027 diagnosis code · Disorders of muscles

Billable code

ICD-10-CM code M63.89
Code
M63.89 (claims format: M6389)
Description
Disorders of muscle in diseases classified elsewhere, multiple sites
Short description
Disord of muscle in diseases classd elswhr, multiple sites
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block
M60-M63 Disorders of muscles
Parent codes
M63 › M63.8

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

M63 – Disorders of muscle in diseases classified elsewhere

Excludes1 (not coded here):
  • myopathy in cysticercosis (B69.81)
  • myopathy in endocrine diseases (G73.7)
  • myopathy in metabolic diseases (G73.7)
  • myopathy in sarcoidosis (D86.87)
  • myopathy in secondary syphilis (A51.49)
  • myopathy in syphilis (late) (A52.78)
  • myopathy in toxoplasmosis (B58.82)
  • myopathy in tuberculosis (A18.09)
Code first:

Block M60-M63

Excludes1 (not coded here):
  • dermatopolymyositis (M33.-)
  • myopathy in amyloidosis (E85.-)
  • myopathy in polyarteritis nodosa (M30.0)
  • myopathy in rheumatoid arthritis (M05.32)
  • myopathy in scleroderma (M34.-)
  • myopathy in Sjögren's syndrome (M35.03)
  • myopathy in systemic lupus erythematosus (M32.-)
Excludes2 (not included here):
  • muscular dystrophies and myopathies (G71-G72)

Index terms for M63.89

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in M63.8

Frequently asked questions

What is ICD-10 code M63.89?

M63.89 is the ICD-10-CM code for disorders of muscle in diseases classified elsewhere, multiple sites, in the block M60-M63 (Disorders of muscles).

Is M63.89 a billable code?

Yes. M63.89 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does M63.89 belong to?

It belongs to category M63 – Disorders of muscle in diseases classified elsewhere.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.