2020 ICD-10-CM Diagnosis Code G70.9

Myoneural disorder, unspecified

    2016 2017 2018 2019 2020 Billable/Specific Code
  • G70.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM G70.9 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of G70.9 - other international versions of ICD-10 G70.9 may differ.
The following code(s) above G70.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to G70.9:
  • G00-G99
    2020 ICD-10-CM Range G00-G99

    Diseases of the nervous system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the nervous system
  • G70
    ICD-10-CM Diagnosis Code G70

    Myasthenia gravis and other myoneural disorders

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Myasthenia gravis and other myoneural disorders
Approximate Synonyms
  • Central core disease
  • Hypoventilation during sleep due to neuromuscular disorder
  • Myoneural disorder
  • Myopathy, central core
  • Neuromuscular blocking, antibiotic induced
  • Neuromuscular disease
  • Neuromuscular disorder
  • Neuromuscular junction disorder
  • Restrictive lung mechanics due to neuromuscular disease
  • Restrictive lung mechanics from neuromuscular disease
  • Sleep related hypoventilation from neuromusc disorder
Clinical Information
  • A general term encompassing lower motor neuron disease; peripheral nervous system diseases; and certain muscular diseases. Manifestations include muscle weakness; fasciculation; muscle atrophy; spasm; myokymia; muscle hypertonia, myalgias, and muscle hypotonia.
  • Diseases affecting the parts of motor units that are in the peripheral nervous system; can be classified as affecting neuromuscular junctions, and muscle fibers.
  • Neuromuscular disorders affect the nerves that control your voluntary muscles. Voluntary muscles are the ones you can control, like in your arms and legs. Your nerve cells, also called neurons, send the messages that control these muscles. When the neurons become unhealthy or die, communication between your nervous system and muscles breaks down. As a result, your muscles weaken and waste away. The weakness can lead to twitching, cramps, aches and pains, and joint and movement problems. Sometimes it also affects heart function and your ability to breathe.examples of neuromuscular disorders include
    • amyotrophic lateral sclerosis
    • multiple sclerosis
    • myasthenia gravis
    • spinal muscular atrophy
    many neuromuscular diseases are genetic, which means they run in families or there is a mutation in your genes. Sometimes, an immune system disorder can cause them. Most of them have no cure. The goal of treatment is to improve symptoms, increase mobility and lengthen life.
ICD-10-CM G70.9 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 073 Cranial and peripheral nerve disorders with mcc
  • 074 Cranial and peripheral nerve disorders without mcc

Convert G70.9 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to G70.9:

ICD-10-CM Codes Adjacent To G70.9
G70 Myasthenia gravis and other myoneural disorders
G70.0 Myasthenia gravis
G70.00 …… without (acute) exacerbation
G70.01 …… with (acute) exacerbation
G70.1 Toxic myoneural disorders
G70.2 Congenital and developmental myasthenia
G70.8 Other specified myoneural disorders
G70.80 Lambert-Eaton syndrome, unspecified
G70.81 Lambert-Eaton syndrome in disease classified elsewhere
G70.89 Other specified myoneural disorders
G70.9 Myoneural disorder, unspecified
G71 Primary disorders of muscles
G71.0 Muscular dystrophy
G71.00 …… unspecified
G71.01 Duchenne or Becker muscular dystrophy
G71.02 Facioscapulohumeral muscular dystrophy
G71.09 Other specified muscular dystrophies
G71.1 Myotonic disorders
G71.11 Myotonic muscular dystrophy
G71.12 Myotonia congenita
G71.13 Myotonic chondrodystrophy

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.