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MRA - 2024 updates for ICD Codes
2024 ICD-10-CM Updates

On June 16, 2023, CMS announced its annual ICD-10-CM updates, encompassing 395 new codes, 25 deleted codes, and 13 revised codes. Following this announcement, CMS promptly refreshed the 2024 addendum, tabular list, index, code tables, and code descriptions.

 

Code deletions in these updates occur when the existing code descriptions no longer accurately represent the changes and require expansion. A prime example is the current ICD-10-CM code set, which previously included a single code (G20) for reporting Parkinson's disease. However, with the updates this year, code G20 has been removed and replaced with the following:

 

DELETED  

  • G20 Parkinson’s disease

 

NEW  

  • G20.A1 Parkinson’s disease without dyskinesia, without mention of fluctuations

  • G20.A2 Parkinson’s disease without dyskinesia, with fluctuations

  • G20.B1 Parkinson’s disease with dyskinesia, without mention of fluctuations

  • G20.B2 Parkinson’s disease with dyskinesia, with fluctuations

Diseases of the nervous system (G00-G99)

G20 Parkinson’s disease

Delete Parkinsonism or Parkinson’s disease NOS

 

NEW CODE

G20.C

- Parkinsonism, unspecified

- Parkinsonism, NOS

  Excludes1:

- Parkinson's disease NOS (G20.A1)

- Parkinson's disease with dyskinesia (G20.B-)

- Parkinson's disease without dyskinesia (G20.A-)

- secondary parkinsonism (G21-)

NEW SUBSECTION

G20.A

Parkinson's disease without dyskinesia

 

NEW CODE

G20.A1

- Parkinson's disease without dyskinesia, without mention of fluctuations

- Parkinson's disease NOS

- Parkinson's disease without dyskinesia, without mention of OFF episodes

G20.A2

- Parkinson's disease without dyskinesia, with fluctuations

- Parkinson's disease without dyskinesia, with OFF episodes

 

NEW SUBSECTION

G20.B

- Parkinson's disease with dyskinesia

Excludes 1: drug induced dystonia (G24.0-)

 

NEW CODES

G20.B1

- Parkinson's disease with dyskinesia, without mention of fluctuations

- Parkinson's disease with dyskinesia, without mention of OFF episodes

G20.B2

- Parkinson's disease with dyskinesia, with fluctuations

- Parkinson's disease with dyskinesia, with OFF episodes

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