359 Muscular dystrophies and other myopathies 
359.0 Congenital hereditary muscular dystrophy convert 359.0 to ICD-10-CM 359.1 Hereditary progressive muscular dystrophy convert 359.1 to ICD-10-CM 359.2 Myotonic disorders 
359.21 Myotonic muscular dystrophy convert 359.21 to ICD-10-CM 359.22 Myotonia congenita convert 359.22 to ICD-10-CM 359.23 Myotonic chondrodystrophy convert 359.23 to ICD-10-CM 359.24 Drug-induced myotonia convert 359.24 to ICD-10-CM
359.29 Other specified myotonic disorder convert 359.29 to ICD-10-CM 359.3 Periodic paralysis convert 359.3 to ICD-10-CM 359.4 Toxic myopathy convert 359.4 to ICD-10-CM 359.5 Myopathy in endocrine diseases classified elsewhere convert 359.5 to ICD-10-CM 359.6 Symptomatic inflammatory myopathy in diseases classified elsewhere convert 359.6 to ICD-10-CM 359.8 Other myopathies 359.81 Critical illness myopathy convert 359.81 to ICD-10-CM 359.89 Other myopathies convert 359.89 to ICD-10-CM 359.9 Myopathy unspecified convert 359.9 to ICD-10-CM