2021 ICD-10-CM Diagnosis Code G24.2

Idiopathic nonfamilial dystonia

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • G24.2 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 G24.2 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of G24.2 - other international versions of ICD-10 G24.2 may differ.
The following code(s) above G24.2 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 G24.2:
  • 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
  • G24
    ICD-10-CM Diagnosis Code G24

    Dystonia

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • dyskinesia
    Type 2 Excludes
    • athetoid cerebral palsy (G80.3)
    Dystonia
Approximate Synonyms
  • Dystonia, symptomatic torsion
  • Idiopathic non-familial dystonia
  • Symptomatic torsion dystonia
ICD-10-CM G24.2 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 091 Other disorders of nervous system with mcc
  • 092 Other disorders of nervous system with cc
  • 093 Other disorders of nervous system without cc/mcc

Convert G24.2 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 G24.2:
  • Dystonia G24.9
    ICD-10-CM Diagnosis Code G24.9

    Dystonia, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Dyskinesia NOS
    • idiopathic G24.1
      ICD-10-CM Diagnosis Code G24.1

      Genetic torsion dystonia

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Dystonia deformans progressiva
      • Dystonia musculorum deformans
      • Familial torsion dystonia
      • Idiopathic familial dystonia
      • Idiopathic (torsion) dystonia NOS
      • (Schwalbe-) Ziehen-Oppenheim disease
      • nonfamilial G24.2
    • torsion (familial) (idiopathic) G24.1
      ICD-10-CM Diagnosis Code G24.1

      Genetic torsion dystonia

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Dystonia deformans progressiva
      • Dystonia musculorum deformans
      • Familial torsion dystonia
      • Idiopathic familial dystonia
      • Idiopathic (torsion) dystonia NOS
      • (Schwalbe-) Ziehen-Oppenheim disease
      • symptomatic G24.2 (nonfamilial)

ICD-10-CM Codes Adjacent To G24.2
G23.1 Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]
G23.2 Striatonigral degeneration
G23.8 Other specified degenerative diseases of basal ganglia
G23.9 Degenerative disease of basal ganglia, unspecified
G24 Dystonia
G24.0 Drug induced dystonia
G24.01 Drug induced subacute dyskinesia
G24.02 Drug induced acute dystonia
G24.09 Other drug induced dystonia
G24.1 Genetic torsion dystonia
G24.2 Idiopathic nonfamilial dystonia
G24.3 Spasmodic torticollis
G24.4 Idiopathic orofacial dystonia
G24.5 Blepharospasm
G24.8 Other dystonia
G24.9 Dystonia, unspecified
G25 Other extrapyramidal and movement disorders
G25.0 Essential tremor
G25.1 Drug-induced tremor
G25.2 Other specified forms of tremor
G25.3 Myoclonus

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