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 46360-4: MRA Aortic arch WO and W contrast IV

Name: LOINC Code 46360-4: MRA Aortic arch WO and W contrast IV
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:31.117Z

46360-4 is a LOINC code used to identify MRA Aortic arch WO and W contrast IV 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 Multisection^WO & W contrast IV. It is commonly used with the system or sample type Chest>Aortic arch.

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 Multisection^WO & W contrast IV. It is commonly used with the system or sample type Chest>Aortic arch.

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: MR.angio

What it does not mean

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

Key facts

MRA Aortic arch WO and W contrast IV
Multisection^WO & W contrast IV
Ac arch; Ang; Angio; Angiography; AO; Ao arch; c; Contr; Contra; Contrst; Document; Finding; Findings; Imaging; Magnetic Resonance Angiographies; Magnetic resonance imaging; Mitral regurgitation maximum velocity; MR angiography; MRA; MRI; MRI.angio; Point in time; Rad; Radiology; Random; Thorax; W contr IV; WC; WO & WC; WO+W contr; WO+W contr IV; WWO

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

MRA Aortic arch WO and W contrast IVMRA Ao arch WO+W contr IVMultisection^WO & W contrast IVRADFindPtChest>Aortic arch

Frequently asked questions

Code details

Code46360-4

SystemLOINC

Display nameMRA Aortic arch WO and W contrast IV

DescriptionMultisection^WO & W contrast IV

Short nameMRA Ao arch WO+W contr IV

ComponentMultisection^WO & W contrast IV

PropertyFind

TimingPt

System (specimen)Chest>Aortic arch

ScaleDoc

MethodMR.angio

ClassRAD

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.19

Last changed2.61

Part names

Multisection^WO & W contrast IVFindPtChest>Aortic archDocMR.angioAortic archChestAngioIVContrastWO & WMRFindingPoint in time (spot)MR angiogramIntravenous

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.