All ICD10 Codes

G46

Non-Billable
ChapterG00–G99
Rankcategory
Official Description

Vascular syndromes of brain in cerebrovascular diseases

Use a more specific code (9 billable)
G46.0Middle cerebral artery syndromeG46.1Anterior cerebral artery syndromeG46.2Posterior cerebral artery syndromeG46.3Brain stem stroke syndromeG46.4Cerebellar stroke syndromeG46.5Pure motor lacunar syndromeG46.6Pure sensory lacunar syndromeG46.7Other lacunar syndromesG46.8Other vascular syndromes of brain in cerebrovascular diseases
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 6: Diseases of the Nervous System (G00-G99).

CH6 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Instructional Notes

Code First
  • underlying cerebrovascular disease (I60-I69)

Clinical Hierarchy

BillableHas subcodes
CH6Diseases of the nervous system (G00-G99)
G40-G47Episodic and paroxysmal disorders (G40-G47)
G46Vascular syndromes of brain in cerebrovascular diseasesNot billable
G46.0Middle cerebral artery syndromeBillable
G46.1Anterior cerebral artery syndromeBillable
G46.2Posterior cerebral artery syndromeBillable
G46.3Brain stem stroke syndromeBillable
G46.4Cerebellar stroke syndromeBillable
G46.5Pure motor lacunar syndromeBillable
G46.6Pure sensory lacunar syndromeBillable
G46.7Other lacunar syndromesBillable
G46.8Other vascular syndromes of brain in cerebrovascular diseasesBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G46:

chapterCH6
Diseases of the nervous system (G00-G99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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