G09 – Sequelae of inflammatory diseases of central nervous system
ICD-10-CM 2027 diagnosis code · Inflammatory diseases of the central nervous system
ICD-10-CM code
G09
- Code
G09(claims format:G09)- Description
- Sequelae of inflammatory diseases of central nervous system
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 6. Diseases of the nervous system (G00-G99)
- Block
- G00-G09 Inflammatory diseases of the central nervous system
Notes for G09
Code first:
- condition resulting from (sequela) of inflammatory diseases of central nervous system
Index terms for G09
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Parencephalitis, sequelae
- Abscess, cerebral, sequelae
- Sequelae, meningitis, bacterial
- Abscess, subdural, brain, sequelae
- Abscess, extradural, brain, sequelae
- Thrombophlebitis, cerebral, sequelae
- Abscess, cerebellum, cerebellar, sequelae
- Suppuration, suppurative, brain, sequelae
- Sequelae, encephalitis or encephalomyelitis
- Sequelae, abscess, intracranial or intraspinal
- Sequelae, meningitis, other or unspecified cause
- Thrombophlebitis, intracranial venous sinus, sequelae
- Sequelae, infection, pyogenic, intracranial or intraspinal
- Sequelae, phlebitis or thrombophlebitis of intracranial or intraspinal venous sinuses and veins
Frequently asked questions
What is ICD-10 code G09?
G09 is the ICD-10-CM code for sequelae of inflammatory diseases of central nervous system, in the block G00-G09 (Inflammatory diseases of the central nervous system).
Is G09 a billable code?
Yes. G09 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.