G45.9
BillableTransient cerebral ischemic attack, unspecified
Transient cerebral ischemic attack, unspecified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Spasm of cerebral artery
- TIA
- Transient cerebral ischemia NOS
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Related Codes(6)
Related Conditions
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(204)
SNOMED CT
- Arterial spasm3750006
- Arteriospasm3750006
- Spasm of artery3750006
- Angiospasm71772004
- Blood vessel spasm71772004
- Vascular spasm71772004
- Vasospasm71772004
- Cerebral arterial spasm73173006
- Spasm of cerebral arteries73173006
- Intermittent cerebral ischaemia195206000
- Intermittent cerebral ischemia195206000
- TIA - transient ischaemic attack266257000
- TIA - transient ischemic attack266257000
- Temporary cerebral vascular dysfunction266257000
- Transient cerebral ischaemia266257000
- Transient cerebral ischemia266257000
- Transient ischaemic attack266257000
- Transient ischemic attack266257000
- Stroke/transient ischaemic attack monitoring first letter415628004
- Stroke/transient ischemic attack monitoring first letter415628004
- Stroke/transient ischaemic attack monitoring second letter415629007
- Stroke/transient ischemic attack monitoring second letter415629007
- Stroke/transient ischaemic attack monitoring status415630002
- Stroke/transient ischemic attack monitoring status415630002
- Stroke/transient ischaemic attack monitoring third letter415631003
- Stroke/transient ischemic attack monitoring third letter415631003
- Stroke/transient ischaemic attack monitoring verbal invitation417059002
- Stroke/transient ischemic attack monitoring verbal invitation417059002
- Stroke/transient ischaemic attack monitoring invitation417540008
- Stroke/transient ischemic attack monitoring invitation417540008
- Transient cerebral ischaemia due to atrial fibrillation426814001
- Transient cerebral ischemia due to atrial fibrillation426814001
- Recurrent transient cerebral ischaemic attack444172003
- Recurrent transient cerebral ischemic attack444172003
- Transient ischaemic attack due to embolism710575003
- Transient ischemic attack due to embolism710575003
- Transient ischaemic attack co-occurrent with subarachnoid haemorrhage1208871009
- Transient ischemic attack co-occurrent with subarachnoid hemorrhage1208871009
UMLS
- Angiospasm, CerebralC0265110
- Angiospasms, CerebralC0265110
- Artery Spasm, CerebralC0265110
- Artery Spasms, CerebralC0265110
- Cerebral AngiospasmC0265110
- Cerebral AngiospasmsC0265110
- Cerebral Artery SpasmC0265110
- Cerebral Artery SpasmsC0265110
- Cerebral VasospasmC0265110
- Cerebral VasospasmsC0265110
- Cerebral arterial spasmC0265110
- Cerebral arteriospasmC0265110
- Cerebrovascular SpasmC0265110
- Cerebrovascular SpasmsC0265110
- Cerebrovascular spasmC0265110
- Spasm cerebrovascularC0265110
- Spasm of cerebral arteriesC0265110
- Spasm of cerebral arteries (disorder)C0265110
- Spasm of cerebral arteryC0265110
- Spasm, Cerebral ArteryC0265110
- Spasm, CerebrovascularC0265110
- Spasms, Cerebral ArteryC0265110
- Spasms, CerebrovascularC0265110
- Vasospasm cerebralC0265110
- Vasospasm, CerebralC0265110
- Vasospasms, CerebralC0265110
- cerebral vasospasmC0265110
- cerebrovascular spasmC0265110
- Attack, Transient IschemicC0007787
- Attacks, Transient IschemicC0007787
- Brain TIAC0007787
- Ischemic Attack, TransientC0007787
- Ischemic Attacks, TransientC0007787
- Mini strokeC0007787
- TIAC0007787
- TIA (Transient Ischemic Attack)C0007787
- TIA - transient ischaemic attackC0007787
- TIA - transient ischemic attackC0007787
- TIA, BrainC0007787
- TIAs (Transient Ischemic Attack)C0007787
- Temporary cerebral vascular dysfunctionC0007787
- Transient Ischemic AttackC0007787
- Transient Ischemic AttacksC0007787
- Transient cerebral ischaemiaC0007787
- Transient cerebral ischemiaC0007787
- Transient cerebral ischemic attack, unspecifiedC0007787
- Transient ischaemic attackC0007787
- Transient ischaemic attacksC0007787
- Transient ischemic attackC0007787
- Transient ischemic attack (disorder)C0007787
- Transient ischemic attacksC0007787
- Transient ischemic attacks (TIA)C0007787
- Transient ischemic attacks (TIAs)C0007787
- attack ischemic transientC0007787
- attacks ischemic transientC0007787
- brain tiaC0007787
- ischemic attack transientC0007787
- tia brainC0007787
- transient cerebral ischemiaC0007787
- transient ischaemic attackC0007787
- transient ischaemic attacksC0007787
- transient ischemic attackC0007787
- transient ischemic attack (TIA)C0007787
- transient ischemic attacksC0007787
- Cerebral Ischemia, TransientC0917805
- Cerebral Ischemias, TransientC0917805
- Ischemia, Transient CerebralC0917805
- Ischemias, Transient CerebralC0917805
- Mini-StrokeC0917805
- Mini-strokeC0917805
- Transient Cerebral IschemiaC0917805
- Transient Cerebral IschemiasC0917805
- Transient cerebral ischemia NOSC0917805
- Unspecified transient cerebral ischaemiaC0917805
- Unspecified transient cerebral ischemiaC0917805
- intermittent cerebral ischemiaC0917805
Clinical Terms
- Transient cerebral ischemia
- Ischemia, Transient Cerebral
- Stroke/transient ischemic attack monitoring third letter
- Vascular spasm
- Ischemias, Transient Cerebral
- Vasospasm cerebral
- transient ischemic attacks
- transient ischemic attack (TIA)
- Mini-Stroke
- Ischemic Attacks, Transient
- Cerebral Artery Spasms
- intermittent cerebral ischemia
- Vasospasm, Cerebral
- Spasm, Cerebrovascular
- Transient ischemic attack
- TIAs (Transient Ischemic Attack)
- Arteriospasm
- Cerebrovascular spasm
- Cerebral Artery Spasm
- Stroke/transient ischaemic attack monitoring first letter
- Transient ischemic attack (disorder)
- Arterial spasm
- Transient ischemic attacks (TIA)
- Unspecified transient cerebral ischaemia
- Cerebral Angiospasms
- Transient ischemic attack due to embolism
- Stroke/transient ischemic attack monitoring first letter
- ischemic attack transient
- Angiospasms, Cerebral
- Spasms, Cerebral Artery
- Stroke/transient ischaemic attack monitoring verbal invitation
- Recurrent transient cerebral ischaemic attack
- Transient Cerebral Ischemias
- transient ischaemic attacks
- Intermittent cerebral ischaemia
- Cerebral Ischemia, Transient
- Transient ischaemic attack co-occurrent with subarachnoid haemorrhage
- Transient cerebral ischaemia due to atrial fibrillation
- Stroke/transient ischaemic attack monitoring third letter
- transient ischaemic attack
- Attack, Transient Ischemic
- Blood vessel spasm
- Temporary cerebral vascular dysfunction
- Spasm of cerebral artery
- Artery Spasm, Cerebral
- Vasospasms, Cerebral
- Spasm of artery
- Stroke/transient ischemic attack monitoring status
- Transient ischemic attack co-occurrent with subarachnoid hemorrhage
- Transient ischaemic attack due to embolism
- Transient ischemic attacks (TIAs)
- Cerebral arteriospasm
- Cerebral Vasospasm
- Stroke/transient ischaemic attack monitoring second letter
- attacks ischemic transient
- Spasm of cerebral arteries (disorder)
- TIA
- Stroke/transient ischaemic attack monitoring status
- Angiospasm, Cerebral
- TIA - transient ischemic attack
- Ischemic Attack, Transient
- Stroke/transient ischemic attack monitoring second letter
- Unspecified transient cerebral ischemia
- tia brain
- Cerebral Ischemias, Transient
- brain tia
- TIA - transient ischaemic attack
- Transient cerebral ischemia due to atrial fibrillation
- Stroke/transient ischaemic attack monitoring invitation
- TIA, Brain
- Spasms, Cerebrovascular
- Cerebral Vasospasms
- Spasm, Cerebral Artery
- Stroke/transient ischemic attack monitoring verbal invitation
- attack ischemic transient
- Transient cerebral ischaemia
- Angiospasm
- Artery Spasms, Cerebral
- Spasm cerebrovascular
- Stroke/transient ischemic attack monitoring invitation
- Transient cerebral ischemia NOS
- Spasm of cerebral arteries
- Attacks, Transient Ischemic
- Mini stroke
- TIA (Transient Ischemic Attack)
- Cerebral Angiospasm
- Cerebrovascular Spasms
- Cerebral arterial spasm
- Vasospasm
- Recurrent transient cerebral ischemic attack
Frequently Asked Questions
What is the ICD-10 code for transient cerebral ischemic attack, unspecified?
The ICD-10-CM code for transient cerebral ischemic attack, unspecified is G45.9. The full clinical description is "Transient cerebral ischemic attack, unspecified". G45.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code G45.9 mean?
ICD-10-CM code G45.9 represents “Transient cerebral ischemic attack, unspecified”. It is classified under Chapter 6: Diseases of the Nervous System and is a billable/specific code that can be used on a claim.
Is G45.9 a billable code?
Yes, G45.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is G45.9 in?
G45.9 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G45.9?
G45.9 has Excludes1 notes indicating codes that cannot be used together with it, including: neonatal cerebral ischemia (P91.0); transient retinal artery occlusion (H34.0-).
What SNOMED CT codes does G45.9 map to?
G45.9 maps to 15 SNOMED CT concepts: 71772004, 3750006, 73173006, 195206000, 444172003, and 10 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for G45.9?
G45.9 is linked to 3 UMLS Concept Unique Identifiers: C0265110, C0007787, C0917805. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G45.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like transient cerebral ischemic attack, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of G45.9?
G45.9 maps to the ICD-11 code: 8B10.Z (Transient ischaemic attack, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.