G09

ICD-10Billable

Sequelae of inflammatory diseases of central nervous system

Official ICD-10-CM descriptor (FY2026)

Sequelae of inflammatory diseases of central nervous system

G09 is valid for submission on a claim — CMS flags it as a billable, specific code.

Code first

Sequence the underlying condition before this code.

  • condition resulting from (sequela) of inflammatory diseases of central nervous system

Notes

  • Category G09 is to be used to indicate conditions whose primary classification is to G00-G08 as the cause of sequelae, themselves classifiable elsewhere. The 'sequelae' include conditions specified as residuals.

Where this code sits

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Source

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.

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