G31.89 Other specified degenerative diseases of nervous system
The ICD-10-CM code for Other specified degenerative diseases of nervous system is G31.89 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- G30-G32: Other degenerative diseases of the nervous system (G30-G32)
- Category G31
- 17 codes (14 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to G31.89:
- Seitelberger's syndrome (infantile neuraxonal dystrophy)
- Degeneration, degenerative › cortical (cerebellar) (parenchymatous)
- Dystrophy, dystrophia › infantile neuraxonal
- Degeneration, degenerative › spinal (cord)
- Syndrome › Seitelberger's
- Degeneration, degenerative › nervous system › fatty
- Degeneration, degenerative › nervous system › specified NEC
- Degeneration, degenerative › brain (cortical) (progressive) › cystic
U.S. Hospital Utilization
- An estimated 4,460 U.S. inpatient stays in 2023 included G31.89 among the documented diagnoses.
- 375 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Dominant/nondominant side (TOC entry)a. Dominant/nondominant side ................................................................................................. 45
Pain - Category G89 (TOC entry)b. Pain - Category G89.............................................................................................................. 45
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026