G70-G73 — Diseases of myoneural junction and muscle
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.1.26.
Codes in range
48
No clinical group
8
A period cannot be grouped from these.
Barred as primary
1
CMS rejects these in the primary position.
Where these codes group
40 of the 48 codes in G70-G73 group to Neuro Rehabilitation. A further 8 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Every code in G70-G73
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| G7000 | Myasthenia gravis without (acute) exacerbation | B | Accepted |
| G7001 | Myasthenia gravis with (acute) exacerbation | B | Accepted |
| G701 | Toxic myoneural disorders | None | Cannot group |
| G702 | Congenital and developmental myasthenia | B | Accepted |
| G7080 | Lambert-Eaton syndrome, unspecified | B | Accepted |
| G7081 | Lambert-Eaton syndrome in disease classified elsewhere | None | Cannot group |
| G7089 | Other specified myoneural disorders | B | Accepted |
| G709 | Myoneural disorder, unspecified | None | Cannot group |
| G7100 | Muscular dystrophy, unspecified | B | Accepted |
| G7101 | Duchenne or Becker muscular dystrophy | B | Accepted |
| G7102 | Facioscapulohumeral muscular dystrophy | B | Accepted |
| G71031 | Autosomal dominant limb girdle muscular dystrophy | B | Accepted |
| G71032 | Autosom recess limb girdle musc dyst d/t calpain-3 dysfnct | B | Accepted |
| G71033 | Limb girdle muscular dystrophy due to dysferlin dysfunction | B | Accepted |
| G710340 | Limb girdle musc dyst due to sarcoglycan dysfnct, unsp | B | Accepted |
| G710341 | Limb girdle musc dyst due to alpha sarcoglycan dysfunction | B | Accepted |
| G710342 | Limb girdle musc dyst due to beta sarcoglycan dysfunction | B | Accepted |
| G710349 | Limb girdle musc dyst due to other sarcoglycan dysfunction | B | Accepted |
| G71035 | Limb girdle musc dyst due to anoctamin-5 dysfunction | B | Accepted |
| G71036 | Limb girdle musc dyst due to fukutin related protein dysfnct | B | Accepted |
| G71038 | Other limb girdle muscular dystrophy | B | Accepted |
| G71039 | Limb girdle muscular dystrophy, unspecified | B | Accepted |
| G7109 | Other specified muscular dystrophies | B | Accepted |
| G7111 | Myotonic muscular dystrophy | B | Accepted |
| G7112 | Myotonia congenita | B | Accepted |
| G7113 | Myotonic chondrodystrophy | B | Accepted |
| G7114 | Drug induced myotonia | B | Accepted |
| G7119 | Other specified myotonic disorders | B | Accepted |
| G7120 | Congenital myopathy, unspecified | B | Accepted |
| G7121 | Nemaline myopathy | B | Accepted |
| G71220 | X-linked myotubular myopathy | B | Accepted |
| G71228 | Other centronuclear myopathy | B | Accepted |
| G7129 | Other congenital myopathy | B | Accepted |
| G713 | Mitochondrial myopathy, not elsewhere classified | B | Accepted |
| G718 | Other primary disorders of muscles | B | Accepted |
| G719 | Primary disorder of muscle, unspecified | None | Cannot group |
| G720 | Drug-induced myopathy | B | Accepted |
| G721 | Alcoholic myopathy | B | Accepted |
| G722 | Myopathy due to other toxic agents | None | Cannot group |
| G723 | Periodic paralysis | B | Accepted |
| G7241 | Inclusion body myositis [IBM] | B | Accepted |
| G7249 | Oth inflammatory and immune myopathies, NEC | B | Accepted |
| G7281 | Critical illness myopathy | B | Accepted |
| G7289 | Other specified myopathies | B | Accepted |
| G729 | Myopathy, unspecified | B | Accepted |
| G731 | Lambert-Eaton syndrome in neoplastic disease | None | Not accepted |
| G733 | Myasthenic syndromes in other diseases classified elsewhere | None | Cannot group |
| G737 | Myopathy in diseases classified elsewhere | None | Cannot group |
Source: CMS HH PPS Grouper Software v07.1.26, effective 2026-04-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
The monthly home health regs digest
What CMS changed, what's due next, and what to do about it — one email a month, no fluff.