G31.85
G31.85: Corticobasal degeneration
Billable / specific codeICD-10-CM
G31.85 is a billable, specific ICD-10-CM code for corticobasal degeneration. It is valid for submission on a claim.
Check G31.85 with the rest of the claim: free scrubberRisk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
G31.85 is named in 20 Medicare coverage policies: 19 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which one applies depends on your Medicare contractor.
- A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
- A53052Billing and Coding: Home Health Speech-Language Pathology
- A53057Billing and Coding: Home Health Occupational Therapy
- A53058Billing and Coding: Home Health Physical Therapy
Alphabetic index entries that lead here
- Degeneration, degenerative›corticobasal
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under G31.8
- G31.80Leukodystrophy, unspecified
- G31.81Alpers disease
- G31.82Leigh's disease
- G31.83Neurocognitive disorder with Lewy bodies
- G31.84Mild cognitive impairment of uncertain or unknown etiology
- G31.86Alexander disease
- G31.87Primary progressive apraxia of speech
- G31.89Other specified degenerative diseases of nervous system