Non-Billable / Non-Specific Code
ICD-10-CM G46 is the diagnosis code for Vascular syndromes of brain in cerebrovascular diseases. This code falls under the section "Episodic and paroxysmal disorders" 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 G46 sits in the ICD-10-CM classification helps ensure proper coding:
No, G46 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
G46 is the ICD-10-CM diagnosis code for "Vascular syndromes of brain in cerebrovascular diseases". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
G46 is located in Section G40-G47 — "Episodic and paroxysmal disorders" within Chapter 6 of the ICD-10-CM Tabular List.
G46 has 9 sub-code(s) that provide more specific detail: G46.0, G46.1, G46.2, G46.3, G46.4 and more.
Use G46 when the patients documented diagnosis matches "Vascular syndromes of brain in cerebrovascular diseases" 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 Vascular syndromes of brain in cerebrovascular diseases is G46.
No, G46 is non-billable. Use a more specific sub-code for primary diagnosis billing.
G46 is in Chapter 6 of the ICD-10-CM Tabular List.
Yes, G46 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.