Disorders of muscles - M60-M63

 Type 1 Excludes

• 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.-)

 Type 2 Excludes

• muscular dystrophies and myopathies (G71-G72)

 Codes

• M60 - Myositis
• M61 - Calcification and ossification of muscle
• M62 - Other disorders of muscle
• M63 - Disorders of muscle in diseases classified elsewhere