ICD-10-CM Book 2024 Edition

Chapters  /  Chapter 6  /  G70-G73

Diseases of myoneural junction and muscle (G70-G73)

G70 Myasthenia gravis and other myoneural disorders
Excludes1 botulism (A05.1, A48.51-A48.52)
transient neonatal myasthenia gravis (P94.0)
G70.0 Myasthenia gravis
G70.00 Myasthenia gravis without (acute) exacerbation
Myasthenia gravis NOS
G70.01 Myasthenia gravis with (acute) exacerbation
Myasthenia gravis in crisis
G70.1 Toxic myoneural disorders
CodeFirst (T51-T65) to identify toxic agent
G70.2 Congenital and developmental myasthenia
G70.8 Other specified myoneural disorders
G70.80 Lambert-Eaton syndrome, unspecified
Lambert-Eaton syndrome NOS
G70.81 Lambert-Eaton syndrome in disease classified elsewhere
CodeFirst underlying disease
Excludes1 Lambert-Eaton syndrome in neoplastic disease (G73.1)
nonPrimary Yes
G70.89 Other specified myoneural disorders
G70.9 Myoneural disorder, unspecified
G71 Primary disorders of muscles
Excludes2 arthrogryposis multiplex congenita (Q74.3)
metabolic disorders (E70-E88)
myositis (M60.-)
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
Sarcoglycanopathy, NOS
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
G71.038 Other limb girdle muscular dystrophy
LGMD R9 FKRP-related
LGMD R22 collagen 6-related
Limb girdle muscular dystrophy due to fukutin related protein dysfunction
Limb girdle muscular dystrophy type 2I
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)
G71.8 Other primary disorders of muscles
G71.9 Primary disorder of muscle, unspecified
Hereditary myopathy NOS
G72 Other and unspecified myopathies
Excludes1 arthrogryposis multiplex congenita (Q74.3)
dermatopolymyositis (M33.-)
ischemic infarction of muscle (M62.2-)
myositis (M60.-)
polymyositis (M33.2.-)
G72.0 Drug-induced myopathy
UseAdditionalCode code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
G72.1 Alcoholic myopathy
UseAdditionalCode code to identify alcoholism (F10.-)
G72.2 Myopathy due to other toxic agents
CodeFirst (T51-T65) to identify toxic agent
G72.3 Periodic paralysis
Familial periodic paralysis
Hyperkalemic periodic paralysis (familial)
Hypokalemic periodic paralysis (familial)
Myotonic periodic paralysis (familial)
Normokalemic paralysis (familial)
Potassium sensitive periodic paralysis
Excludes1 paramyotonia congenita (of von Eulenburg) (G71.19)
G72.4 Inflammatory and immune myopathies, not elsewhere classified
G72.41 Inclusion body myositis [IBM]
G72.49 Other inflammatory and immune myopathies, not elsewhere classified
Inflammatory myopathy NOS
G72.8 Other specified myopathies
G72.81 Critical illness myopathy
Acute necrotizing myopathy
Acute quadriplegic myopathy
Intensive care (ICU) myopathy
Myopathy of critical illness
G72.89 Other specified myopathies
G72.9 Myopathy, unspecified
G73 Disorders of myoneural junction and muscle in diseases classified elsewhere
G73.1 Lambert-Eaton syndrome in neoplastic disease
CodeFirst underlying neoplasm (C00-D49)
Excludes1 Lambert-Eaton syndrome not associated with neoplasm (G70.80-G70.81)
nonPrimary Yes
G73.3 Myasthenic syndromes in other diseases classified elsewhere
CodeFirst underlying disease, such as:
neoplasm (C00-D49)
thyrotoxicosis (E05.-)
nonPrimary Yes
G73.7 Myopathy in diseases classified elsewhere
CodeFirst underlying disease, such as:
glycogen storage disease (E74.0-)
hyperparathyroidism (E21.0, E21.3)
hypoparathyroidism (E20.-)
lipid storage disorders (E75.-)
Excludes1 myopathy in:
rheumatoid arthritis (M05.32)
sarcoidosis (D86.87)
scleroderma (M34.82)
Sjögren syndrome (M35.03)
systemic lupus erythematosus (M32.19)
nonPrimary Yes