Diseases of myoneural junction and muscle
62 codes in this section
About Section G70-G73
Section G70-G73 (G70-G73) covers diseases of myoneural junction and muscle. It sits within the Diseases of the nervous system chapter (G00-G99). This section contains 62 ICD-10-CM codes, 48 billable diagnoses you can submit on a claim, and 14 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in G70-G73
Grouped by 3-character root code. Click any code for full detail.
| G70.0 | Myasthenia gravis | Header |
| G70.00 | Myasthenia gravis without (acute) exacerbation | Billable |
| G70.01 | Myasthenia gravis with (acute) exacerbation | Billable |
| G70.1 | Toxic myoneural disorders | Billable |
| G70.2 | Congenital and developmental myasthenia | Billable |
| G70.8 | Other specified myoneural disorders | Header |
| G70.80 | Lambert-Eaton syndrome, unspecified | Billable |
| G70.81 | Lambert-Eaton syndrome in disease classified elsewhere | Billable |
| G70.89 | Other specified myoneural disorders | Billable |
| G70.9 | Myoneural disorder, unspecified | Billable |
| G71.0 | Muscular dystrophy | Header |
| G71.00 | Muscular dystrophy, unspecified | Billable |
| G71.01 | Duchenne or Becker muscular dystrophy | Billable |
| G71.02 | Facioscapulohumeral muscular dystrophy | Billable |
| G71.03 | Limb girdle muscular dystrophies | Header |
| G71.031 | Autosomal dominant limb girdle muscular dystrophy | Billable |
| G71.032 | Autosomal recessive limb girdle muscular dystrophy due to calpain-3 dysfunction | Billable |
| G71.033 | Limb girdle muscular dystrophy due to dysferlin dysfunction | Billable |
| G71.034 | Limb girdle muscular dystrophy due to sarcoglycan dysfunction | Header |
| G71.0340 | Limb girdle muscular dystrophy due to sarcoglycan dysfunction, unspecified | Billable |
| G71.0341 | Limb girdle muscular dystrophy due to alpha sarcoglycan dysfunction | Billable |
| G71.0342 | Limb girdle muscular dystrophy due to beta sarcoglycan dysfunction | Billable |
| G71.0349 | Limb girdle muscular dystrophy due to other sarcoglycan dysfunction | Billable |
| G71.035 | Limb girdle muscular dystrophy due to anoctamin-5 dysfunction | Billable |
| G71.036 | Limb girdle muscular dystrophy due to fukutin related protein dysfunction | Billable |
| G71.038 | Other limb girdle muscular dystrophy | Billable |
| G71.039 | Limb girdle muscular dystrophy, unspecified | Billable |
| G71.09 | Other specified muscular dystrophies | Billable |
| G71.1 | Myotonic disorders | Header |
| G71.11 | Myotonic muscular dystrophy | Billable |
| G71.12 | Myotonia congenita | Billable |
| G71.13 | Myotonic chondrodystrophy | Billable |
| G71.14 | Drug induced myotonia | Billable |
| G71.19 | Other specified myotonic disorders | Billable |
| G71.2 | Congenital myopathies | Header |
| G71.20 | Congenital myopathy, unspecified | Billable |
| G71.21 | Nemaline myopathy | Billable |
| G71.22 | Centronuclear myopathy | Header |
| G71.220 | X-linked myotubular myopathy | Billable |
| G71.228 | Other centronuclear myopathy | Billable |
| G71.29 | Other congenital myopathy | Billable |
| G71.3 | Mitochondrial myopathy, not elsewhere classified | Billable |
| G71.8 | Other primary disorders of muscles | Billable |
| G71.9 | Primary disorder of muscle, unspecified | Billable |
| G72.0 | Drug-induced myopathy | Billable |
| G72.1 | Alcoholic myopathy | Billable |
| G72.2 | Myopathy due to other toxic agents | Billable |
| G72.3 | Periodic paralysis | Billable |
| G72.4 | Inflammatory and immune myopathies, not elsewhere classified | Header |
| G72.41 | Inclusion body myositis [IBM] | Billable |
| G72.49 | Other inflammatory and immune myopathies, not elsewhere classified | Billable |
| G72.8 | Other specified myopathies | Header |
| G72.81 | Critical illness myopathy | Billable |
| G72.89 | Other specified myopathies | Billable |
| G72.9 | Myopathy, unspecified | Billable |
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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