ICD-10-CM › Chapter 6 Diseases of the nervous system › G89-G99
G89-G99 - Other disorders of the nervous system
146 ICD-10-CM codes sit in this section, of which 112 are billable in FY2027. Every one has a page giving the years it was valid and what to use instead when it is not.
- 146 codes
- 112 billable FY2027
- 34 not billable, retired or subdivided
- 11 categories
Categories
Each of these is a three-character category. Most are not billable on their own - the billable code is one of the children listed on its page.
| Code | Description | Status |
|---|---|---|
| G89 | Pain, not elsewhere classified | Not billable |
| G90 | Disorders of autonomic nervous system | Not billable |
| G91 | Hydrocephalus | Not billable |
| G92 | Toxic encephalopathy | Not billable |
| G93 | Other disorders of brain | Not billable |
| G94 | Other disorders of brain in diseases classified elsewhere | Valid |
| G95 | Other and unspecified diseases of spinal cord | Not billable |
| G96 | Other disorders of central nervous system | Not billable |
| G97 | Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified | Not billable |
| G98 | Other disorders of nervous system not elsewhere classified | Not billable |
| G99 | Other disorders of nervous system in diseases classified elsewhere | Not billable |
Or browse all ICD-10-CM codes by first character, check a list of codes with the batch validity checker, or see what changed in each release.