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 105146-5: MRA Head vessels and Neck vessels WO contrast IV

Name: LOINC Code 105146-5: MRA Head vessels and Neck vessels WO contrast IV
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:19.133Z

105146-5 is a LOINC code used to identify MRA Head vessels and Neck vessels WO 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 contrast IV. It is commonly used with the system or sample type Head>Head vessels & Neck>Neck vessels.

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 contrast IV. It is commonly used with the system or sample type Head>Head vessels & Neck>Neck vessels.

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 Head vessels and Neck vessels WO contrast IV
Multisection^WO contrast IV
Ang; Angio; Angiography; Brain; c; Contr; Contra; Contrst; Cranial; Cranium; Document; Finding; Findings; Head+Neck Ves; Imaging; Intracranial; Magnetic Resonance Angiographies; Magnetic resonance imaging; Mitral regurgitation maximum velocity; MR angiography; MRA; MRI; MRI.angio; Point in time; Radiology; Random; Skull; Vesl; Vessels.XXX; without contrast

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 Head vessels and Neck vessels WO contrast IVMRA Head+Neck VesMultisection^WO contrast IVRADFindPtHead>Head vessels & Neck>Neck vessels

Frequently asked questions

Code details

Code105146-5

SystemLOINC

Display nameMRA Head vessels and Neck vessels WO contrast IV

DescriptionMultisection^WO contrast IV

Short nameMRA Head+Neck Ves

ComponentMultisection^WO contrast IV

PropertyFind

TimingPt

System (specimen)Head>Head vessels & Neck>Neck vessels

ScaleDoc

MethodMR.angio

ClassRAD

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.78

Last changed2.78

Part names

Multisection^WO contrast IVFindPtHead>Head vessels & Neck>Neck vesselsDocMR.angioTrueUnspecifiedHeadNeckAngioIVContrastWOMRNeck vesselsHead vesselsFindingPoint in time (spot)Head vessels and Neck vesselsMR 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.