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ICD-10-CM Code G45.9
Transient cerebral ischemic attack, unspecified

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
Adult Only
Adult Only
Code is only used for patients 15 years old or older.
| ICD-10 from 2011 - 2016

G45.9 is a billable ICD code used to specify a diagnosis of transient cerebral ischemic attack, unspecified. A 'billable code' is detailed enough to be used to specify a medical diagnosis.


The ICD code G459 is used to code Transient ischemic attack

A transient ischemic attack (TIA) is a transient episode of neurologic dysfunction caused by ischemia (loss of blood flow) – either focal brain, spinal cord, or retinal – without acute infarction (tissue death). TIAs have the same underlying cause as strokes: a disruption of cerebral blood flow (CBF), and are often referred to as mini-strokes or mega-strokes. Symptoms caused by a TIA resolve in 24 hours or less . TIAs cause the same symptoms associated with stroke, such as contralateral paralysis (opposite side of body from affected brain hemisphere) or sudden weakness or numbness. A TIA may cause sudden dimming or loss of vision (amaurosis fugax), aphasia, slurred speech (dysarthria) and mental confusion. But unlike a stroke, the symptoms of a TIA can resolve within a few minutes or within 24 hours. Brain injury may still occur in a TIA lasting only a few minutes. Having a TIA is a risk factor for eventually having a stroke or a silent stroke.

Specialty: Neurology
MeSH Code: D002546
ICD 9 Code: 435.9
Source: Wikipedia

Coding Notes for G45.9 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Spasm of cerebral artery
TIA
Transient cerebral ischemia NOS

MS-DRG Mapping

  • DRG Group #069 - Transient ischemia.

ICD-10-CM Alphabetical Index References for 'G45.9 - Transient cerebral ischemic attack, unspecified'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code G45.9. Click on any term below to browse the alphabetical index.

Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)

Unspecified transient cerebral ischemia (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code G45.9 and a single ICD9 code, 435.9 is an approximate match for comparison and conversion purposes.


Parent Code: G45 - Transient cerebral ischemic attacks and related syndromes

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/G459