Speech-Language Pathology ICD-10-CM Code Changes for 2024

The following new and revised ICD-10-CM (International Classification of Diseases, 10th Revision, Clinical Modification) codes were effective October 1, 2023, for fiscal year (FY) 2024. ICD-10-CM codes are updated annually. View the latest updates on ASHA's website. 

There were no major changes to ICD-10-CM codes directly related to speech, language, cognitive, swallowing, or voice disorders for FY 2024. However, SLPs should be aware that the 2024 ICD-10-CM expanded the family of diagnosis codes describing Parkinson’s disease for greater specificity. 

Note: Always check with payers regarding coverage of new or revised ICD-10-CM codes. Coding changes may not always alter payer coverage decisions for specific conditions.

On this page:

Parkinson's Disease

The following list only includes the new codes that can be reported on a claim. For a full listing of the family of codes with instructional notes, see ASHA's resource on ICD-10-CM Diagnosis Codes Related to Speech, Language, and Swallowing Disorders [PDF].

G20.A1

Parkinson's disease without dyskinesia, without mention of fluctuations (new code)
Parkinson's disease NOS
Parkinson's disease without dyskinesia, without mention of OFF episodes

G20.A2 Parkinson's disease without dyskinesia, with fluctuations (new code)
Parkinson's disease without dyskinesia, with OFF episodes
G20.B1 Parkinson's disease with dyskinesia, without mention of fluctuations (new code)
Parkinson's disease with dyskinesia, without mention of OFF episodes
G20.B2 Parkinson's disease with dyskinesia, with fluctuations (new code)
Parkinson's disease with dyskinesia, with OFF episodes
G20.C Parkinsonism, unspecified (new code)

Parkinsonism, NOS

ASHA Notes

  • SLPs may use these new ICD-10-CM codes to provide additional detail regarding Parkinson’s as an underlying or coexisting condition to the speech, language cognitive, swallowing, or voice disorder.
  • Consult the medical record or referring physician before reporting Parkinson’s disease in addition to the treating diagnosis on the claim.

Resources

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