All ICD10 Codes

G46

Non-Billable
ChapterG00–G99
Rankcategory
Official Description

Vascular syndromes of brain in cerebrovascular diseases

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 6: Diseases of the Nervous System (G00-G99).

CH6 Parent Instructions

Excludes2(Not included here)
  • 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

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

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

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to G46. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Avellis' syndrome1 unique routes
Direct index entry→G46
Benedikt's paralysis or syndrome1 unique routes
Direct index entry→G46
Céstan (-Chenais) paralysis or syndrome1 unique routes
Direct index entry→G46
Claude's disease or syndrome1 unique routes
Direct index entry→G46
Foville's (peduncular) disease or syndrome1 unique routes
Direct index entry→G46
Gubler-Millard paralysis or syndrome1 unique routes
Direct index entry→G46
Millard-Gubler (-Foville) paralysis or syndrome1 unique routes
Direct index entry→G46
Paralysis, paralytic (complete) (incomplete)5 unique routes
Benedikt's→G46
Céstan-Chenais→G46
Gubler (-Millard)→G46
Millard-Gubler-Foville→G46
Weber's→G46
Syndrome13 unique routes
Avellis'→G46
Benedikt's→G46
brain stem stroke→G46
cerebellar
stroke→G46
cerebral(2 variants)
artery(2 variants)
anterior→G46
middle→G46
Foville's (peduncular)→G46
Gubler-Millard→G46
Millard-Gubler→G46
Wallenberg's→G46
Weber-Gubler→G46
Weber-Leyden→G46
Weber's→G46

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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