G46

Non-billable

Vascular syndromes of brain in cerebrovascular diseases

G46 is the ICD-10-CM code for Vascular syndromes of brain in cerebrovascular diseases. It is a non-billable category code — use a more specific child code such as G46.0 for billing.

Status
Header (non-billable)
Chapter
G00-G99
Subcodes
9
Edition
FY2026

G00-G99 Diseases of the nervous system

What this means — in plain language

MedlinePlus · NIH

Your brain is the control center of your body. It controls your thoughts, memory, speech, and movement. It regulates the function of many organs. It's part of your nervous system, which also includes your spinal cord and peripheral nerves. The nervous system sends signals between your brain and the rest of the body. Your nerves take in information from your senses and send it to the brain to be processed. Your brain…

Read more about Brain Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Code first

  • underlying cerebrovascular disease (I60-I69)

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code G46?
G46 is the ICD-10-CM code for "Vascular syndromes of brain in cerebrovascular diseases". It falls under G00-G99 Diseases of the nervous system.
Is G46 a billable code?
No — G46 is a non-billable header code. Use a more specific child code (such as G46.0) for billing.
What are the subcodes of G46?
G46 has 9 more specific child codes, including G46.0, G46.1, G46.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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