2017/18 ICD-10-CM Diagnosis Code G45

Transient cerebral ischemic attacks and related syndromes

Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as G45. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • neonatal cerebral ischemia (
    ICD-10-CM Diagnosis Code P91.0

    Neonatal cerebral ischemia

      2016 2017 2018 Billable/Specific Code Code on Newborn Record
    P91.0
    )
  • transient retinal artery occlusion (
    ICD-10-CM Diagnosis Code H34.0

    Transient retinal artery occlusion

      2016 2017 2018 Non-Billable/Non-Specific Code
    H34.0-
    )
The following code(s) above G45 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to G45:
  • G00-G99
    2018 ICD-10-CM Range G00-G99

    Diseases of the nervous system

    Type 2 Excludes
    • 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)
    Diseases of the nervous system
Code History
Code annotations containing back-references to G45:
ICD-10-CM Codes Adjacent To G45
G44.52 New daily persistent headache (NDPH)
G44.53 Primary thunderclap headache
G44.59 Other complicated headache syndrome
G44.8 Other specified headache syndromes
G44.81 Hypnic headache
G44.82 Headache associated with sexual activity
G44.83 Primary cough headache
G44.84 Primary exertional headache
G44.85 Primary stabbing headache
G44.89 Other headache syndrome
G45 Transient cerebral ischemic attacks and related syndromes
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
G46 Vascular syndromes of brain in cerebrovascular diseases
G46.0 Middle cerebral artery syndrome
G46.1 Anterior cerebral artery syndrome

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.