Diseases of myoneural junction and muscle (G70-G73)
chapter 6: Diseases of the Nervous System
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Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers default dominant or nondominant side for hemiplegia and monoplegia, and use and sequencing of G89 pain codes, including postoperative, chronic, and neoplasm-related pain.
- Dominant/nondominant side (page 45)
- Pain - Category G89 (page 45)
All codes under G70-G73
G70-G73 can't be used on a claim. Pick a billable code below; grey headings group them.
- G70Myasthenia gravis and other myoneural disorders
- G70.0Myasthenia gravis
- G70.00Myasthenia gravis without (acute) exacerbation
- G70.01Myasthenia gravis with (acute) exacerbation
- G70.1Toxic myoneural disorders
- G70.2Congenital and developmental myasthenia
- G70.8Other specified myoneural disorders
- G70.80Lambert-Eaton syndrome, unspecified
- G70.81Lambert-Eaton syndrome in disease classified elsewhere
- G70.89Other specified myoneural disorders
- G70.9Myoneural disorder, unspecified
- G71Primary disorders of muscles
- G71.0Muscular dystrophy
- G71.00Muscular dystrophy, unspecified
- G71.01Duchenne or Becker muscular dystrophy
- G71.02Facioscapulohumeral muscular dystrophy
- G71.03Limb girdle muscular dystrophies
- G71.031Autosomal dominant limb girdle muscular dystrophy
- G71.032Autosomal recessive limb girdle muscular dystrophy due to calpain-3 dysfunction
- G71.033Limb girdle muscular dystrophy due to dysferlin dysfunction
- G71.034Limb girdle muscular dystrophy due to sarcoglycan dysfunction
- G71.0340Limb girdle muscular dystrophy due to sarcoglycan dysfunction, unspecified
- G71.0341Limb girdle muscular dystrophy due to alpha sarcoglycan dysfunction
- G71.0342Limb girdle muscular dystrophy due to beta sarcoglycan dysfunction
- G71.0349Limb girdle muscular dystrophy due to other sarcoglycan dysfunction
- G71.035Limb girdle muscular dystrophy due to anoctamin-5 dysfunction
- G71.036Limb girdle muscular dystrophy due to fukutin related protein dysfunction
- G71.038Other limb girdle muscular dystrophy
- G71.039Limb girdle muscular dystrophy, unspecified
- G71.09Other specified muscular dystrophies
- G71.1Myotonic disorders
- G71.11Myotonic muscular dystrophy
- G71.12Myotonia congenita
- G71.13Myotonic chondrodystrophy
- G71.14Drug induced myotonia
- G71.19Other specified myotonic disorders
- G71.2Congenital myopathies
- G71.20Congenital myopathy, unspecified
- G71.21Nemaline myopathy
- G71.22Centronuclear myopathy
- G71.220X-linked myotubular myopathy
- G71.228Other centronuclear myopathy
- G71.29Other congenital myopathy
- G71.3Mitochondrial myopathy, not elsewhere classified
- G71.8Other primary disorders of muscles
- G71.9Primary disorder of muscle, unspecified
- G72Other and unspecified myopathies
- G72.0Drug-induced myopathy
- G72.1Alcoholic myopathy
- G72.2Myopathy due to other toxic agents
- G72.3Periodic paralysis
- G72.4Inflammatory and immune myopathies, not elsewhere classified
- G72.41Inclusion body myositis [IBM]
- G72.49Other inflammatory and immune myopathies, not elsewhere classified
- G72.8Other specified myopathies
- G72.81Critical illness myopathy
- G72.89Other specified myopathies
- G72.9Myopathy, unspecified
- G73Disorders of myoneural junction and muscle in diseases classified elsewhere
- G73.1Lambert-Eaton syndrome in neoplastic disease
- G73.3Myasthenic syndromes in other diseases classified elsewhere
- G73.7Myopathy in diseases classified elsewhere
G70-G73 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Myasthenia Gravis
Myasthenia gravis, sometimes called MG, is a chronic (long-lasting) disease that causes weakness in your voluntary muscles. The voluntary muscles are the ones that you can control. They include the muscles you use for:
Read more about myasthenia gravis on MedlinePlus