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Free Medical Coding > ICD10 CM > 2025 ICD-10-CM Codes > 2025 ICD-10-CM Codes G00-G99 – Diseases of the nervous system (G00-G99) > 2025 ICD-10-CM Codes G10-G14 – Systemic atrophies primarily affecting the central nervous system (G10-G14) > 2025 ICD-10-CM Diagnosis Code G10 – Huntington’s disease (G10)

2025 ICD-10-CM Diagnosis Code G10 – Huntington’s disease (G10)

2016201720182019202020212022202320242025Billable/Specific Code
  • G10 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2024 edition of ICD-10-CM G10 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of G10 – other international versions of ICD-10 G10 may differ.

ICD-10-CM G10 is grouped within Diagnostic Related Group(s):

  • 056 Degenerative nervous system disorders with mcc
  • 057 Degenerative nervous system disorders without mcc

Applicable To

  • Huntington’s chorea
  • Huntington’s dementia

Code History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2016 (effective 10/1/2015): No change
  • 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
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change

Diagnosis Index entries containing back-references to G10:

  • hereditary > Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic) G25.5
  • Huntington\’s > Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic) G25.5
  • hereditary > progressive G25.5
  • Huntington\’s disease or chorea > in (due to) F10.97
  • with behavioral disturbance > Huntington\’s disease or chorea G10
  • Huntington\’s > Disease, diseased
  • with dementia > Huntington\’s G10
  • with dementia > Huntington\’s disease or chorea G10
  • with behavioral disturbance > with dementia G10

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