Diseases of myoneural junction and muscle (G70-G73)
ICD-10 codes G70-G73 cover diseases affecting the myoneural junction and muscles, including various myopathies and neuromuscular disorders. These codes detail conditions like myasthenia gravis, muscular dystrophies, myotonic disorders, congenital myopathies, and other muscle-related diseases, helping healthcare professionals precisely classify and diagnose these complex disorders.
This ICD-10 range includes G70 for myasthenia gravis and related myoneural disorders, distinguishing between acute exacerbations and remission. Codes such as G71 describe primary muscle disorders like muscular dystrophies, including Duchenne and Becker types, and the facioscapulohumeral form. The chapter also covers myotonic disorders under G71.1, like myotonic muscular dystrophy and drug-induced myotonia. Congenital myopathies and mitochondrial myopathies are categorized under G71.2 and G71.3 respectively, encompassing conditions such as nemaline and centronuclear myopathies. G72 codes encompass other myopathies including drug-induced and alcoholic myopathy, while G73 addresses myoneural junction and muscle disorders secondary to other diseases, such as Lambert-Eaton syndrome related to cancer. Synonyms like "Myasthenic crisis" for G70.01 or "Steinert myotonic dystrophy" for G71.11 help clarify coding choices when alternative terms are encountered.
Diseases of the nervous system (G00–G99)
Diseases of myoneural junction and muscle (G70-G73)
G70 Myasthenia gravis and other myoneural disorders
G70.0 Myasthenia gravis
- G70.00 Myasthenia gravis without (acute) exacerbation
- G70.01 Myasthenia gravis with (acute) exacerbation
- G70.1 Toxic myoneural disorders
- G70.2 Congenital and developmental myasthenia
G70.8 Other specified myoneural disorders
- G70.80 Lambert-Eaton syndrome, unspecified
- G70.81 Lambert-Eaton syndrome in disease classified elsewhere
- G70.89 Other specified myoneural disorders
- G70.9 Myoneural disorder, unspecified
Myasthenia gravis and other myoneural disorders (G70)
G71 Primary disorders of muscles
G71.0 Muscular dystrophy
- G71.00 Muscular dystrophy, unspecified
- G71.01 Duchenne or Becker muscular dystrophy
- G71.02 Facioscapulohumeral muscular dystrophy
G71.03 Limb girdle muscular dystrophies
- G71.031 Autosomal dominant limb girdle muscular dystrophy
- G71.032 Autosomal recessive limb girdle muscular dystrophy due to calpain-3 dysfunction
- G71.033 Limb girdle muscular dystrophy due to dysferlin dysfunction
G71.034 Limb girdle muscular dystrophy due to sarcoglycan dysfunction
- G71.0340 Limb girdle muscular dystrophy due to sarcoglycan dysfunction, unspecified
- G71.0341 Limb girdle muscular dystrophy due to alpha sarcoglycan dysfunction
- G71.0342 Limb girdle muscular dystrophy due to beta sarcoglycan dysfunction
- G71.0349 Limb girdle muscular dystrophy due to other sarcoglycan dysfunction
- G71.035 Limb girdle muscular dystrophy due to anoctamin-5 dysfunction
- G71.038 Other limb girdle muscular dystrophy
- G71.039 Limb girdle muscular dystrophy, unspecified
- G71.09 Other specified muscular dystrophies
G71.1 Myotonic disorders
- G71.11 Myotonic muscular dystrophy
- G71.12 Myotonia congenita
- G71.13 Myotonic chondrodystrophy
- G71.14 Drug induced myotonia
- G71.19 Other specified myotonic disorders
G71.2 Congenital myopathies
- G71.20 Congenital myopathy, unspecified
- G71.21 Nemaline myopathy
G71.22 Centronuclear myopathy
- G71.220 X-linked myotubular myopathy
- G71.228 Other centronuclear myopathy
- G71.29 Other congenital myopathy
- G71.3 Mitochondrial myopathy, not elsewhere classified
- G71.8 Other primary disorders of muscles
- G71.9 Primary disorder of muscle, unspecified
Primary disorders of muscles (G71)
G72 Other and unspecified myopathies
- G72.0 Drug-induced myopathy
- G72.1 Alcoholic myopathy
- G72.2 Myopathy due to other toxic agents
- G72.3 Periodic paralysis
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
G72.8 Other specified myopathies
- G72.81 Critical illness myopathy
- G72.89 Other specified myopathies
- G72.9 Myopathy, unspecified
Other and unspecified myopathies (G72)
G73 Disorders of myoneural junction and muscle in diseases classified elsewhere
- G73.1 Lambert-Eaton syndrome in neoplastic disease
- G73.3 Myasthenic syndromes in other diseases classified elsewhere
- G73.7 Myopathy in diseases classified elsewhere
Disorders of myoneural junction and muscle in diseases classified elsewhere (G73)