G98 ICD-10-CM Code: Other disorders of nervous system not elsewhere classified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
G98Other disorders of nervous system not elsewhere classified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where G98 sits
- 1
Chapter 6
Diseases of the nervous system (G00-G99)
- 2
Section
Other disorders of the nervous system (G89-G99)
- 3
Category G98
Other disorders of nervous system not elsewhere classified
- 4
Code G98
Other disorders of nervous system not elsewhere classified
More specific choices
Codes under G98
G98 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for G98.
Code first
No “code first” instruction is listed for G98.
Use additional code
No “use additional code” instruction is listed for G98.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for G98.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for G98.
Transparency
Source and release
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.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code G98 mean?
G98 is the FY 2027 U.S. ICD-10-CM code for “Other disorders of nervous system not elsewhere classified.”
Is G98 a billable or specific ICD-10-CM code?
No. G98 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is G98 located in ICD-10-CM?
G98 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Other disorders of the nervous system (G89-G99) (G89–G99), under category G98, Other disorders of nervous system not elsewhere classified.
What coding notes are listed for G98?
No inclusion terms are listed for G98 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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