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Primary disorders of muscles

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Disorders in which the primary symptom of muscle weakness is secondary to a specific dysfunction of a muscle fiber.

exclusions

• Metabolic disorders  (5C50-5D2Z)
• Arthrogryposis multiplex congenita  (LD26.41)

code elsewhere

• Idiopathic rhabdomyolysis  (FB32.20)
• Idiopathic inflammatory myopathy  (4A41)

sections/codes in this section (8C70-8C7Z)

• Muscular dystrophy  (8C70)
• Myotonic disorders  (8C71)
• Congenital myopathies  (8C72)
• Mitochondrial myopathies  (8C73)
• Periodic paralyses or disorders of muscle membrane excitability  (8C74)
• Distal myopathies  (8C75)
• Myofibrillar myopathy  (8C76)
• Ocular myopathy  (8C77)
• Malignant hyperthermia or hyperpyrexia  (8C78)
• Other specified primary disorders of muscles  (8C7Y)
• Primary disorders of muscles, unspecified  (8C7Z)

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