What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 88003-9: TOAST Classification of subtypes of acute ischemic stroke

Name: LOINC Code 88003-9: TOAST Classification of subtypes of acute ischemic stroke
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:16.696Z

88003-9 is a LOINC code used to identify TOAST Classification of subtypes of acute ischemic stroke in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Acute ischemic stroke subtype. It is commonly used with the system or sample type ^Patient.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Acute ischemic stroke subtype. It is commonly used with the system or sample type ^Patient.

When is it used?

Used in lab systems, EHRs, and clinical data exchange.
May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
Status: ACTIVE
Order vs observation: Both
Method: TOAST

What it does not mean

The code identifies the observation or test, not the actual result.

Key facts

TOAST Classification of subtypes of acute ischemic stroke

Acute ischemic stroke subtype

A systematic way of diagnosing the sub-types of ischemic stroke was developed as part of the Trial of Org 10172 in Acute Stroke Treatment (TOAST). Intervention for stroke patients must occur quickly and sometimes before diagnostic testing can be completed, and the TOAST classification gives clinicians a way to categorize the probable stroke sub-type based on clinical and imaging findings before definitive diagnostic testing is completed. [PMID7678184] Since its publication in 1993, the TOAST classification has been used extensively in research and especially therapeutic studies related to stroke. In addition, its classification of probable small versus large vessel disease may help guide treatment decisions. [PMID: 16146496]

CARD.PROC; Cardio; Cardiology; Heart Disease; Nominal; Point in time; Random; TOAST Classification

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

TOAST Classification of subtypes of acute ischemic strokeTOAST ClassificationAcute ischemic stroke subtypeCARD.PROCClassPt^Patient

Frequently asked questions

Code details

Code88003-9

SystemLOINC

Display nameTOAST Classification of subtypes of acute ischemic stroke

DescriptionAcute ischemic stroke subtype

Short nameTOAST Classification

ComponentAcute ischemic stroke subtype

PropertyClass

TimingPt

System (specimen)^Patient

ScaleNom

MethodTOAST

ClassCARD.PROC

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.63

Last changed2.63

Part names

Acute ischemic stroke subtypeClassPt^PatientNomTOASTTOAST Classification of subtypes of acute ischemic strokePoint in time (spot)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.