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I60.4 ICD-10-CA code: Subarachnoid haemorrhage from basilar artery

I60.4 is the ICD-10-CA code for “Subarachnoid haemorrhage from basilar artery” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

I60.4

Subarachnoid haemorrhage from basilar artery

Short description: Subarachnoid haemorrhage basilar artery

ICD-10-CA · Canada · Also written I604

Index terms

Entries in CIHI’s alphabetical index that lead to I60.4. Searching the index by the condition the note names is how coders reach this code.

  • Hemorrhage, hemorrhagic, subarachnoid (nontraumatic), from, basilar artery

Notes for I60.4

As CIHI prints them, with any note I60.4 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 subarachnoid haemorrhage (I69.0)From I60 Subarachnoid haemorrhage
  • 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 I60.4 sits

  1. 1ChapterChapter 9: Diseases of the circulatory system (I00-I99)
  2. 2Block I60-I69Cerebrovascular diseases
  3. 3Category I60Subarachnoid haemorrhage
  4. 4Valid code I60.4Subarachnoid haemorrhage from basilar artery

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 I60.4 in the CIHI source

Frequently asked questions

What does ICD-10-CA code I60.4 mean?

I60.4 is the ICD-10-CA code for “Subarachnoid haemorrhage from basilar artery” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is I60.4 in ICD-10-CA?

I60.4 sits under I60 Subarachnoid haemorrhage, within I60-I69 Cerebrovascular diseases, within Chapter 9: Diseases of the circulatory system (I00-I99).

What coding notes apply to I60.4?

ICD-10-CA lists Use additional code, Excludes, Includes notes for I60.4, 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 I60.4

I60.0Subarachnoid haemorrhage from carotid siphon and bifurcationI60.1Subarachnoid haemorrhage from middle cerebral arteryI60.2Subarachnoid haemorrhage from anterior communicating arteryI60.3Subarachnoid haemorrhage from posterior communicating arteryI60.5Subarachnoid haemorrhage from vertebral arteryI60.6Subarachnoid haemorrhage from other intracranial arteriesI60.7Subarachnoid haemorrhage from intracranial artery, unspecifiedI60.8Other subarachnoid haemorrhageI60.9Subarachnoid haemorrhage, unspecified