G09 SEQUELAE OF INFLAMMATORY DISEASES OF CENTRAL NERVOUS SYSTEM

Code Information

  • Diagnosis Code: G09
  • Short Description: Sequelae of inflammatory diseases of central nervous system
  • Long Description: Sequelae of inflammatory diseases of central nervous system
  • Code Version: 2025 ICD-10-CM

The code G09 is VALID for claim submission

Code Classification

Synonyms

  • Hydrocephalus due to and following meningitis
  • Hydrocephalus following infectious disease
  • Late effects of intracranial abscess or pyogenic infection
  • Late effects of pyogenic intracranial abscess
  • Obstructive hydrocephalus
  • Obstructive hydrocephalus due to and following meningitis
  • Postinfectious hydrocephalus
  • Secondary tic disorder
  • Sequela of infectious meningitis
  • Sequelae of inflammatory diseases of the central nervous system
  • Sequelae of meningitis
  • Sequelae of meningitis
  • Sequelae of meningitis
  • Tic disorder due to post-encephalitic syndrome

References to Index of Diseases and Injuries

The code G09 has the following ICD-10-CM references to the Index of Diseases and Injuries

  • Code First:
    • 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.

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
G09 Right Arrow 326 Late eff cns abscess
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
This page was last updated on: 10/1/2025
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