U.S. ICD-10-CM · FY 2027

G45 ICD-10-CM Code: Transient cerebral ischemic attacks and related syndromes

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

G45

Transient cerebral ischemic attacks and related syndromes

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where G45 sits

  1. 1

    Chapter 6

    Diseases of the nervous system (G00-G99)

  2. 2

    Section

    Episodic and paroxysmal disorders (G40-G47)

  3. 3

    Category G45

    Transient cerebral ischemic attacks and related syndromes

  4. 4

    Code G45

    Transient cerebral ischemic attacks and related syndromes

More specific choices

Codes under G45

G45 is a non-billable category. Choose the child code that best matches the documented diagnosis.

G45.0

Vertebro-basilar artery syndrome

G45.1

Carotid artery syndrome (hemispheric)

G45.2

Multiple and bilateral precerebral artery syndromes

G45.3

Amaurosis fugax

G45.4

Transient global amnesia

G45.8

Other transient cerebral ischemic attacks and related syndromes

G45.9

Transient cerebral ischemic attack, unspecified

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for G45.

Code first

No “code first” instruction is listed for G45.

Use additional code

No “use additional code” instruction is listed for G45.

Excludes1

Conditions that should not be reported together with this code.

  • neonatal cerebral ischemia (P91.0)
  • transient retinal artery occlusion (H34.0-)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for G45.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code G45 mean?

G45 is the FY 2027 U.S. ICD-10-CM code for “Transient cerebral ischemic attacks and related syndromes.”

Is G45 a billable or specific ICD-10-CM code?

No. G45 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is G45 located in ICD-10-CM?

G45 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Episodic and paroxysmal disorders (G40-G47) (G40–G47), under category G45, Transient cerebral ischemic attacks and related syndromes.

What coding notes are listed for G45?

No inclusion terms are listed for G45 in this reference record. No code-first instruction is listed. Excludes1 notes: neonatal cerebral ischemia (P91.0); transient retinal artery occlusion (H34.0-). No Excludes2 note is listed.

Ready to transform your clinical documentation?

Join Vero and see how effortless documentation can be.

Try for free

  • No credit card required

  • Cancel anytime