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3 Mitochondrial myopathy, not elsewhere classified

Excludes1: Kearns-Sayre syndrome (H49.81)

Leber's disease (H47.21)

Leigh's encephalopathy (G31.82)

mitochondrial metabolism disorders (E88.4.-)

Reye's syndrome (G93.7)

G71.8 Other primary disorders of muscles

G71.9 Primary disorder of muscle, unspecified

Hereditary myopathy NOS

G72 Other and unspecified myopathies

Excludes1: arthrogryposis multiplex congenita (Q74.3)

dermatopolymyositis (M33.-)

ischemic infarction of muscle (M62.2-)

myositis (M60.-)

polymyositis (M33.2.-)

G72.0 Drug-induced myopathy

Code first (T36-T50) to identify drug

G72.1 Alcoholic myopathy

Use additional code to identify alcoholism (F10.-)

G72.2 Myopathy due to other toxic agents

Code first (T51-T65) to identify toxic agent.

G72.3 Periodic paralysis

Familial periodic paralysis

Hyperkalemic periodic paralysis (familial)

Hypokalemic periodic paralysis (familial)

Myotonic periodic paralysis (familial)

Normokalemic paralysis (familial)

Potassium sensitive periodic paralysis

Excludes1: paramyotonia congenita (of von Eulenburg) (G71.19)

G72.4 Inflammatory and immune myopathies, not elsewhere classified

G72.41 Inclusion body myositis [IBM]

G72.49 Other inflammatory and immune myopathies, not elsewhere classified

Inflammatory myopathy NOS

G72.8 Other specified myopathies

G72.81 Critical illness myopathy

Acute necrotizing myopathy

Acute quadriplegic myopathy

Intensive care (ICU) myopathy

Myopathy of critical illness

G72.89 Other specified myopathies

G72.9 Myopathy, unspecified

G73.