|  G71 |  | Primary disorders of muscles   | 
	
		|  |  | 
	
		| Excludes2 | arthrogryposis multiplex congenita (Q74.3) metabolic disorders (E70-E88)
 myositis (M60.-)
 
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|  |  | 
	
		|  G71.0 |  | Muscular dystrophy |  |  |  | 
	
		|  G71.00 |  | Muscular dystrophy, unspecified |  |  |  |  | 
	
		|  G71.01 |  | Duchenne or Becker muscular dystrophy |  
		|  |  | 
| Autosomal recessive, childhood type, muscular dystrophy resembling Duchenne or Becker muscular dystrophy |  | Benign [Becker] muscular dystrophy |  | Severe [Duchenne] muscular dystrophy |  |  |  |  |  | 
	
		|  G71.02 |  | Facioscapulohumeral muscular dystrophy |  
		|  |  | 
| Scapulohumeral muscular dystrophy |  |  |  |  |  | 
	
		|  G71.03 |  | Limb girdle muscular dystrophies |  |  |  | 
	
		|  G71.031 |  | Autosomal dominant limb girdle muscular dystrophy |  
		|  |  | 
| LGMD D4 calpain-3-related |  | LGMD D5 collagen 6-related |  | Limb girdle muscular dystrophy type 1 |  |  |  |  |  | 
	
		|  G71.032 |  | Autosomal recessive limb girdle muscular dystrophy due to calpain-3 dysfunction |  
		|  |  | 
| Limb girdle muscular dystrophy type 2A |  | LGMD R1 calpain-3-related |  | Primary calpainopathy |  |  |  |  |  | 
	
		|  G71.033 |  | Limb girdle muscular dystrophy due to dysferlin dysfunction |  
		|  |  | 
| Dysferlinopathy |  | LGMD R2 dysferlin-related |  | Limb girdle muscular dystrophy type 2B |  | Miyoshi Myopathy type 1 |  |  |  |  |  | 
	
		|  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 |  
		|  |  | 
| Alpha sarcoglycanopathy |  | Limb-girdle muscular dystrophy due to alpha-sarcoglycan deficiency |  | Limb girdle muscular dystrophy type 2D |  |  |  |  |  | 
	
		|  G71.0342 |  | Limb girdle muscular dystrophy due to beta sarcoglycan dysfunction |  
		|  |  | 
| Beta sarcoglycanopathy |  | Limb girdle muscular dystrophy due to beta-sarcoglycan deficiency |  | Limb girdle muscular dystrophy type 2E |  |  |  |  |  | 
	
		|  G71.0349 |  | Limb girdle muscular dystrophy due to other sarcoglycan dysfunction |  
		|  |  | 
| Delta sarcoglycanopathy |  | Delta-sarcoglycan-related LGMD R6 |  | Gamma sarcoglycanopathy |  | Gamma-sarcoglycan-related LGMD R5 |  | Limb girdle muscular dystrophy type 2C |  | Limb girdle muscular dystrophy type 2F |  |  |  |  |  |  | 
	
		|  G71.035 |  | Limb girdle muscular dystrophy due to anoctamin-5 dysfunction |  
		|  |  | 
| Anoctamin-5-related LGMD R12 |  | Anoctaminopathy |  | Autosomal recessive limb girdle muscular dystrophy type 2L |  | Miyoshi myopathy type 3 |  |  |  |  |  | 
	
		|  G71.036 |  | Limb girdle muscular dystrophy due to fukutin related protein dysfunction |  
		|  |  | 
| LGMD R9 FKRP-related |  | Limb girdle muscular dystrophy due to FKRP deficiency |  | Limb girdle muscular dystrophy type 2I |  |  |  |  |  | 
	
		|  G71.038 |  | Other limb girdle muscular dystrophy |  
		|  |  | 
| LGMD R22 collagen 6-related |  | Other autosomal recessive limb girdle muscular dystrophy |  |  |  |  |  | 
	
		|  G71.039 |  | Limb girdle muscular dystrophy, unspecified |  |  |  |  |  | 
	
		|  G71.09 |  | Other specified muscular dystrophies |  
		|  |  | 
| Benign scapuloperoneal muscular dystrophy with early contractures [Emery-Dreifuss] |  | Congenital muscular dystrophy NOS |  | Congenital muscular dystrophy with specific morphological abnormalities of the muscle fiber |  | Distal muscular dystrophy |  | Ocular muscular dystrophy |  | Oculopharyngeal muscular dystrophy |  | Scapuloperoneal muscular dystrophy |  |  |  | 
|  |  | 
	
		|  G71.1 |  | Myotonic disorders |  |  |  | 
	
		|  G71.11 |  | Myotonic muscular dystrophy |  
		|  |  | 
| Dystrophia myotonica [Steinert] |  | Myotonia atrophica |  | Myotonic dystrophy |  | Proximal myotonic myopathy (PROMM) |  | Steinert disease |  |  |  |  |  | 
	
		|  G71.12 |  | Myotonia congenita |  
		|  |  | 
| Acetazolamide responsive myotonia congenita |  | Dominant myotonia congenita [Thomsen disease] |  | Myotonia levior |  | Recessive myotonia congenita [Becker disease] |  |  |  |  |  | 
	
		|  G71.13 |  | Myotonic chondrodystrophy |  
		|  |  | 
| Chondrodystrophic myotonia |  | Congenital myotonic chondrodystrophy |  | Schwartz-Jampel disease |  |  |  |  |  | 
	
		|  G71.14 |  | Drug induced myotonia |  
		|  |  | 
	
		| UseAdditionalCode | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) 
 |  |  |  |  |  | 
	
		|  G71.19 |  | Other specified myotonic disorders |  
		|  |  | 
| Myotonia fluctuans |  | Myotonia permanens |  | Neuromyotonia [Isaacs] |  | Paramyotonia congenita (of von Eulenburg) |  | Pseudomyotonia |  | Symptomatic myotonia |  |  |  | 
|  |  | 
	
		|  G71.2 |  | Congenital myopathies |  
		|  |  | 
	
		| Excludes2 | arthrogryposis multiplex congenita (Q74.3) 
 |  |  |  |  | 
	
		|  G71.20 |  | Congenital myopathy, unspecified |  |  |  |  | 
	
		|  G71.21 |  | Nemaline myopathy |  |  |  |  | 
	
		|  G71.22 |  | Centronuclear myopathy |  |  |  | 
	
		|  G71.220 |  | X-linked myotubular myopathy |  
		|  |  | 
| Myotubular (centronuclear) myopathy |  |  |  |  |  | 
	
		|  G71.228 |  | Other centronuclear myopathy |  
		|  |  | 
| Autosomal centronuclear myopathy |  | Autosomal dominant centronuclear myopathy |  | Autosomal recessive centronuclear myopathy |  | Centronuclear myopathy, NOS |  |  |  |  |  |  | 
	
		|  G71.29 |  | Other congenital myopathy |  
		|  |  | 
| Central core disease |  | Minicore disease |  | Multicore disease |  | Multiminicore disease |  |  |  | 
|  |  | 
	
		|  G71.3 |  | Mitochondrial myopathy, not elsewhere classified |  
		|  |  | 
	
		| Excludes1 | Kearns-Sayre syndrome (H49.81) Leber's disease (H47.21)
 Leigh's encephalopathy (G31.82)
 mitochondrial metabolism disorders (E88.4.-)
 Reye's syndrome (G93.7)
 
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|  |  | 
	
		|  G71.8 |  | Other primary disorders of muscles |  | 
|  |  | 
	
		|  G71.9 |  | Primary disorder of muscle, unspecified |  
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