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I63.1 ICD-10-CA code: Cerebral infarction due to embolism of precerebral arteries

I63.1 is the ICD-10-CA code for “Cerebral infarction due to embolism of precerebral arteries” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

I63.1

Cerebral infarction due to embolism of precerebral arteries

Short description: Cereb infarct dt embolism precereb art

ICD-10-CA · Canada · Also written I631

Index terms

Entries in CIHI’s alphabetical index that lead to I63.1. Searching the index by the condition the note names is how coders reach this code.

  • Occlusion, occluded, artery, basilar (with), infarction (due to), embolism
  • Occlusion, occluded, artery, carotid (with), infarction (due to), embolism
  • Occlusion, occluded, artery, vertebral, with, infarction (due to), embolism
  • Occlusion, occluded, artery, precerebral, with infarction (due to), embolism
  • Occlusion, occluded, artery, precerebral, specified NEC, with infarction (due to), embolism
  • Occlusion, occluded, artery, precerebral, multiple or bilateral, with infarction (due to), embolism
  • Infarct, infarction (of), cerebral (hemorrhagic), due to, embolism (hemorrhagic), precerebral arteries

Notes for I63.1

As CIHI prints them, with any note I63.1 takes from the headings above it.

Includes

Use additional code

Add a code for this detail when the note documents it.

Excludes

Conditions classified elsewhere.

  • Sequelae of cerebral infarction (I69.3)From I63 Cerebral infarction
  • Transient cerebral ischaemic attacks and related syndromes (G45.-)traumatic intracranial haemorrhage (S06.-)vascular dementia (F01.-)From I60-I69 Cerebrovascular diseases
  • Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)systemic connective tissue disorders (M30-M36)transient cerebral ischaemic attacks and related syndromes (G45.-)From Chapter 9: Diseases of the circulatory system (I00-I99)

Where I63.1 sits

  1. 1ChapterChapter 9: Diseases of the circulatory system (I00-I99)
  2. 2Block I60-I69Cerebrovascular diseases
  3. 3Category I63Cerebral infarction
  4. 4Valid code I63.1Cerebral infarction due to embolism of precerebral arteries

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See I63.1 in the CIHI source

Frequently asked questions

What does ICD-10-CA code I63.1 mean?

I63.1 is the ICD-10-CA code for “Cerebral infarction due to embolism of precerebral arteries” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is I63.1 in ICD-10-CA?

I63.1 sits under I63 Cerebral infarction, within I60-I69 Cerebrovascular diseases, within Chapter 9: Diseases of the circulatory system (I00-I99).

What coding notes apply to I63.1?

ICD-10-CA lists Includes, Use additional code, Excludes notes for I63.1, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside I63.1

I63.0Cerebral infarction due to thrombosis of precerebral arteriesI63.2Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteriesI63.3Cerebral infarction due to thrombosis of cerebral arteriesI63.4Cerebral infarction due to embolism of cerebral arteriesI63.5Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteriesI63.6Cerebral infarction due to cerebral venous thrombosis, nonpyogenicI63.8Other cerebral infarctionI63.9Cerebral infarction, unspecified