1. G71 Primary disorders of muscles

    Excludes2

    • arthrogryposis multiplex congenita (Q74.3)
    • metabolic disorders (E70-E88)
    • myositis (M60.-)
    1. G71.0 Muscular dystrophy

      1. G71.00 Muscular dystrophy, unspecified

      2. G71.01 Duchenne or Becker muscular dystrophy

        Inclusion term(s):

        • Autosomal recessive, childhood type, muscular dystrophy resembling Duchenne or Becker muscular dystrophy
        • Benign [Becker] muscular dystrophy
        • Severe [Duchenne] muscular dystrophy
      3. G71.02 Facioscapulohumeral muscular dystrophy

        Inclusion term(s):

        • Scapulohumeral muscular dystrophy
      4. G71.09 Other specified muscular dystrophies

        Inclusion term(s):

        • 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
        • Limb-girdle muscular dystrophy
        • Ocular muscular dystrophy
        • Oculopharyngeal muscular dystrophy
        • Scapuloperoneal muscular dystrophy
    2. G71.1 Myotonic disorders

      1. G71.11 Myotonic muscular dystrophy

        Inclusion term(s):

        • Dystrophia myotonica [Steinert]
        • Myotonia atrophica
        • Myotonic dystrophy
        • Proximal myotonic myopathy (PROMM)
        • Steinert disease
      2. G71.12 Myotonia congenita

        Inclusion term(s):

        • Acetazolamide responsive myotonia congenita
        • Dominant myotonia congenita [Thomsen disease]
        • Myotonia levior
        • Recessive myotonia congenita [Becker disease]
      3. G71.13 Myotonic chondrodystrophy

        Inclusion term(s):

        • Chondrodystrophic myotonia
        • Congenital myotonic chondrodystrophy
        • Schwartz-Jampel disease
      4. G71.14 Drug induced myotonia

      5. G71.19 Other specified myotonic disorders

        Inclusion term(s):

        • Myotonia fluctuans
        • Myotonia permanens
        • Neuromyotonia [Isaacs]
        • Paramyotonia congenita (of von Eulenburg)
        • Pseudomyotonia
        • Symptomatic myotonia
    3. G71.2 Congenital myopathies

      1. G71.20 Congenital myopathy, unspecified

      2. G71.21 Nemaline myopathy

      3. G71.22 Centronuclear myopathy

        • G71.220 X-linked myotubular myopathy

          Inclusion term(s):

          • Myotubular (centronuclear) myopathy
        • G71.228 Other centronuclear myopathy

          Inclusion term(s):

          • Autosomal centronuclear myopathy
          • Autosomal dominant centronuclear myopathy
          • Autosomal recessive centronuclear myopathy
          • Centronuclear myopathy, NOS
      4. G71.29 Other congenital myopathy

        Inclusion term(s):

        • Central core disease
        • Minicore disease
        • Multicore disease
        • Multiminicore disease
    4. G71.3 Mitochondrial myopathy, not elsewhere classified

    5. G71.8 Other primary disorders of muscles

    6. G71.9 Primary disorder of muscle, unspecified

      Inclusion term(s):

      • Hereditary myopathy NOS
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.