G09 ICD-10-CM Code: Sequelae of inflammatory diseases of central nervous system
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
G09Sequelae of inflammatory diseases of central nervous system
ICD-10-CM diagnosis code · United States clinical modification
Where G09 sits
- 1
Chapter 6
Diseases of the nervous system (G00-G99)
- 2
Section
Inflammatory diseases of the central nervous system (G00-G09)
- 3
Category G09
Sequelae of inflammatory diseases of central nervous system
- 4
Code G09
Sequelae of inflammatory diseases of central nervous system
Notes for this code
Inclusion terms
No inclusion terms are listed for G09.
Code first
- condition resulting from (sequela) of inflammatory diseases of central nervous system
Use additional code
No “use additional code” instruction is listed for G09.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for G09.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for G09.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code G09 mean?
G09 is the FY 2027 U.S. ICD-10-CM code for “Sequelae of inflammatory diseases of central nervous system.”
Is G09 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, G09 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is G09 located in ICD-10-CM?
G09 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Inflammatory diseases of the central nervous system (G00-G09) (G00–G09), under category G09, Sequelae of inflammatory diseases of central nervous system.
What coding notes are listed for G09?
No inclusion terms are listed for G09 in this reference record. Code-first instructions: condition resulting from (sequela) of inflammatory diseases of central nervous system. No Excludes1 note is listed. No Excludes2 note is listed.