ICD-10-CM G46.3 is the diagnosis code for Brain stem stroke syndrome. This code falls under the section "Episodic and paroxysmal disorders" within Chapter 6 — Diseases of the nervous system (G00-G99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where G46.3 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, G46.3 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
G46.3 is the ICD-10-CM diagnosis code for "Brain stem stroke syndrome". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of G46.3 is G46 ("Vascular syndromes of brain in cerebrovascular diseases"). G46.3 provides a more specific classification within this category.
G46.3 is located in Section G40-G47 — "Episodic and paroxysmal disorders" within Chapter 6 of the ICD-10-CM Tabular List.
Use G46.3 when the patients documented diagnosis matches "Brain stem stroke syndrome" 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 Brain stem stroke syndrome is G46.3.
Yes, G46.3 can be used as a primary diagnosis code since it is billable and specific.
G46.3 is in Chapter 6 of the ICD-10-CM Tabular List.
Yes, G46.3 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.