Non-Billable / Non-Specific Code
ICD-10-CM G98 is the diagnosis code for Other disorders of nervous system not elsewhere classified. This code falls under the section "Other disorders of the nervous system" within Chapter 6 — Diseases of the nervous system (G00-G99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where G98 sits in the ICD-10-CM classification helps ensure proper coding:
No, G98 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
G98 is the ICD-10-CM diagnosis code for "Other disorders of nervous system not elsewhere classified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
G98 is located in Section G89-G99 — "Other disorders of the nervous system" within Chapter 6 of the ICD-10-CM Tabular List.
G98 has 2 sub-code(s) that provide more specific detail: G98.0, G98.8.
Use G98 when the patients documented diagnosis matches "Other disorders of nervous system not elsewhere classified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Other disorders of nervous system not elsewhere classified is G98.
No, G98 is non-billable. Use a more specific sub-code for primary diagnosis billing.
G98 is in Chapter 6 of the ICD-10-CM Tabular List.
Yes, G98 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.