G70 Myasthenia gravis and other myoneural disorders

Excl.:

botulism ( A05.1)

transient neonatal myasthenia gravis ( P94.0)

G70.0 Myasthenia gravis

Coding-Hint

Use additional external cause code (Chapter XX), if desired, to identify drug, if drug-induced.

G70.1 Toxic myoneural disorders

Coding-Hint

Use additional external cause code (Chapter XX), if desired, to identify toxic agent.

G70.2 Congenital and developmental myasthenia

G70.8 Other specified myoneural disorders

G70.9 Myoneural disorder, unspecified

G71 Primary disorders of muscles

Excl.:

arthrogryposis multiplex congenita ( Q74.3)

metabolic disorders ( E70-E90)

myositis ( M60.-)

G71.0 Muscular dystrophy

Incl.:

Muscular dystrophy:

• autosomal recessive, childhood type, resembling Duchenne or Becker
• benign [Becker]
• benign scapuloperoneal with early contractures [Emery-Dreifuss]
• distal
• facioscapulohumeral
• limb-girdle
• ocular
• oculopharyngeal
• scapuloperoneal
• severe [Duchenne]

Excl.:

congenital muscular dystrophy:

• NOS (G71.2)
• with specific morphological abnormalities of the muscle fibre (G71.2)

G71.1 Myotonic disorders

Incl.:

Dystrophia myotonica [Steinert]

Myotonia:

• chondrodystrophic
• drug-induced
• symptomatic

Myotonia congenita:

• NOS
• dominant [Thomsen]
• recessive [Becker]

Neuromyotonia [Isaacs]

Paramyotonia congenita

Pseudomyotonia

Coding-Hint

Use additional external cause code (Chapter XX), if desired, to identify drug, if drug-induced.

G71.2 Congenital myopathies

Incl.:

Congenital muscular dystrophy:

• NOS
• with specific morphological abnormalities of the muscle fibre

Disease:

• central core
• minicore
• multicore

Fibre-type disproportion

Myopathy:

• myotubular (centronuclear)
• nemaline

G71.3 Mitochondrial myopathy, not elsewhere classified

G71.8 Other primary disorders of muscles

G71.9 Primary disorder of muscle, unspecified

Incl.:

Hereditary myopathy NOS

G72 Other myopathies

Excl.:

arthrogryposis multiplex congenita ( Q74.3)

dermatopolymyositis ( M33.-)

ischaemic infarction of muscle ( M62.2)

myositis ( M60.-)

polymyositis ( M33.2)

G72.0 Drug-induced myopathy

Coding-Hint

Use additional external cause code (Chapter XX), if desired, to identify drug.

G72.1 Alcoholic myopathy

G72.2 Myopathy due to other toxic agents

Coding-Hint

Use additional external cause code (Chapter XX), if desired, to identify toxic agent.

G72.3 Periodic paralysis

Incl.:

Periodic paralysis (familial):

• hyperkalaemic
• hypokalaemic
• myotonic
• normokalaemic

G72.4 Inflammatory myopathy, not elsewhere classified

G72.8 Other specified myopathies

G72.9 Myopathy, unspecified

G73* Disorders of myoneural junction and muscle in diseases classified elsewhere

G73.0* Myasthenic syndromes in endocrine diseases

Incl.:

Myasthenic syndromes in:

• diabetic amyotrophy (E10-E14 with common fourth character .4†)
• thyrotoxicosis [hyperthyroidism] (E05.-†)

G73.1* Lambert-Eaton syndrome (C00-D48†)

G73.2* Other myasthenic syndromes in neoplastic disease (C00-D48†)

G73.3* Myasthenic syndromes in other diseases classified elsewhere

G73.4* Myopathy in infectious and parasitic diseases classified elsewhere

G73.5* Myopathy in endocrine diseases

Incl.:

Myopathy in:

• hyperparathyroidism (E21.0-E21.3†)
• hypoparathyroidism (E20.-†)

Thyrotoxic myopathy ( E05.-†)

G73.6* Myopathy in metabolic diseases

Incl.:

Myopathy in:

• glycogen storage disease (E74.0†)
• lipid storage disorders (E75.-†)

G73.7* Myopathy in other diseases classified elsewhere

Incl.:

Myopathy in:

• rheumatoid arthritis (M05-M06†)
• scleroderma (M34.8†)
• sicca syndrome [Sjögren] (M35.0†)
• systemic lupus erythematosus (M32.1†)