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
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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
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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
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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