Primary disorders of muscles

Definition

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

Exclusions

• Arthrogryposis multiplex congenita (LD26.41)
• Metabolic disorders

11 subordinate codes

• 8C70Muscular dystrophy
• 8C71Myotonic disorders
• 8C72Congenital myopathies
• 8C73Mitochondrial myopathies
• 8C74Periodic paralyses or disorders of muscle membrane excitability
• 8C75Distal myopathies
• 8C76Myofibrillar myopathy
• 8C77Ocular myopathy
• 8C78Malignant hyperthermia or hyperpyrexia
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Diseases of neuromuscular junction or muscle

• 8C60-8C6ZMyasthenia gravis or certain specified neuromuscular junction disorders
• 8C80-8C8ZSecondary myopathies
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified