Alphabetic Index FY2027

M60.8

Other myositis

FY2027Chapter 13: Diseases of the musculoskeletal system and connective tissue/M60–M63 Disorders of muscles

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

M60.8 is a non-billable ICD-10-CM code header for other myositis. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are M60.80 Other myositis, unspecified site; M60.81 Other myositis shoulder; M60.82 Other myositis, upper arm; M60.83 Other myositis, forearm and 6 more. Its coding notes include 7 Excludes1 entries and 12 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Also from chapter/block level (7 notes)
Inherited from M60–M63 Disorders of muscles
  • 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. Both codes may be reported if the patient has both conditions.

Inherited from M60 Myositis
  • inclusion body myositis [IBM] (G72.41)
Also from chapter/block level (11 notes)
Inherited from M60–M63 Disorders of muscles
  • muscular dystrophies and myopathies (G71-G72)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

More specific codes under M60.8 10