2021 ICD-10-CM Diagnosis Code G70.2

Congenital and developmental myasthenia

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • G70.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM G70.2 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of G70.2 - other international versions of ICD-10 G70.2 may differ.
The following code(s) above G70.2 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 G70.2:
  • G00-G99
    2021 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 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Myasthenia gravis and other myoneural disorders
Approximate Synonyms
  • Congenital myasthenia
  • Developmental myasthenia
ICD-10-CM G70.2 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 073 Cranial and peripheral nerve disorders with mcc
  • 074 Cranial and peripheral nerve disorders without mcc

Convert G70.2 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
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to G70.2:
  • Amyotonia M62.89
    ICD-10-CM Diagnosis Code M62.89

    Other specified disorders of muscle

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Muscle (sheath) hernia
    • congenita G70.2
  • Myasthenia G70.9
    ICD-10-CM Diagnosis Code G70.9

    Myoneural disorder, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • congenital G70.2
    • developmental G70.2
  • Oppenheim's disease G70.2

ICD-10-CM Codes Adjacent To G70.2
G64 Other disorders of peripheral nervous system
G65 Sequelae of inflammatory and toxic polyneuropathies
G65.0 Sequelae of Guillain-Barré syndrome
G65.1 Sequelae of other inflammatory polyneuropathy
G65.2 Sequelae of toxic polyneuropathy
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

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