| G600 | Hereditary motor and sensory neuropathy |
| G601 | Refsum's disease |
| G602 | Neuropathy in association with hereditary ataxia |
| G603 | Idiopathic progressive neuropathy |
| G608 | Other hereditary and idiopathic neuropathies |
| G609 | Hereditary and idiopathic neuropathy, unspecified |
| G61 | Inflammatory polyneuropathy |
| G610 | Guillain-Barre syndrome |
| G611 | Serum neuropathy |
| G618 | Other inflammatory polyneuropathies |
| G6181 | Chronic inflammatory demyelinating polyneuritis |
| G6182 | Multifocal motor neuropathy |
| G6189 | Other inflammatory polyneuropathies |
| G619 | Inflammatory polyneuropathy, unspecified |
| G62 | Other and unspecified polyneuropathies |
| G620 | Drug-induced polyneuropathy |
| G621 | Alcoholic polyneuropathy |
| G622 | Polyneuropathy due to other toxic agents |
| G628 | Other specified polyneuropathies |
| G6281 | Critical illness polyneuropathy |
| G6282 | Radiation-induced polyneuropathy |
| G6289 | Other specified polyneuropathies |
| G629 | Polyneuropathy, unspecified |
| G63 | Polyneuropathy in diseases classified elsewhere |
| G64 | Other disorders of peripheral nervous system |
| G65 | Sequelae of inflammatory and toxic polyneuropathies |
| G650 | Sequelae of Guillain-Barre syndrome |
| G651 | Sequelae of other inflammatory polyneuropathy |
| G652 | Sequelae of toxic polyneuropathy |
| G70 | Myasthenia gravis and other myoneural disorders |
| G700 | Myasthenia gravis |
| G7000 | Myasthenia gravis without (acute) exacerbation |
| G7001 | Myasthenia gravis with (acute) exacerbation |
| G701 | Toxic myoneural disorders |
| G702 | Congenital and developmental myasthenia |
| G708 | Other specified myoneural disorders |
| G7080 | Lambert-Eaton syndrome, unspecified |
| G7081 | Lambert-Eaton syndrome in disease classified elsewhere |
| G7089 | Other specified myoneural disorders |
| G709 | Myoneural disorder, unspecified |
| G71 | Primary disorders of muscles |
| G710 | Muscular dystrophy |
| G7100 | Muscular dystrophy, unspecified |
| G7101 | Duchenne or Becker muscular dystrophy |
| G7102 | Facioscapulohumeral muscular dystrophy |
| G7103 | Limb girdle muscular dystrophies |
| G71031 | Autosomal dominant limb girdle muscular dystrophy |
| G71032 | Autosomal recessive limb girdle muscular dystrophy due to calpain-3 dysfunction |
| G71033 | Limb girdle muscular dystrophy due to dysferlin dysfunction |
| G71034 | Limb girdle muscular dystrophy due to sarcoglycan dysfunction |