G46Header code — not billable
Vascular syndromes of brain in cerebrovascular diseases
- Chapter
- 6. Diseases of the nervous system
- Category
- G46
- Effective date
- October 1, 2026
Related codes in category G46
G46.0Middle cerebral artery syndromeYesG46.1Anterior cerebral artery syndromeYesG46.2Posterior cerebral artery syndromeYesG46.3Brain stem stroke syndromeYesG46.4Cerebellar stroke syndromeYesG46.5Pure motor lacunar syndromeYesG46.6Pure sensory lacunar syndromeYesG46.7Other lacunar syndromesYesG46.8Oth vascular syndromes of brain in cerebrovascular diseasesYes
Frequently asked questions
What is ICD-10 code G46?
G46 is an ICD-10-CM diagnosis code for Vascular syndromes of brain in cerebrovascular diseases.
Is G46 a billable code?
No. G46 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is G46 in?
G46 falls under Chapter 6: Diseases of the nervous system.
When did G46 become effective?
G46 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to G46?
G46 belongs to category G46, which includes 9 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.