G98
ICD-10Non-billable categoryOther disorders of nervous system not elsewhere classified
Official ICD-10-CM descriptor (FY2026)
Other disorders of nervous system not elsewhere classified
G98 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- nervous system disorder NOS
More specific codes under G98
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.