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 36243-4: MR Posterior fossa W contrast IV

Name: LOINC Code 36243-4: MR Posterior fossa W contrast IV
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:23.525Z

36243-4 is a LOINC code used to identify MR Posterior fossa 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^W contrast IV. It is commonly used with the system or sample type Head>Posterior fossa.

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^W contrast IV. It is commonly used with the system or sample type Head>Posterior fossa.

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

What it does not mean

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

Key facts

MR Posterior fossa W contrast IV
Multisection^W contrast IV
Brain; c; Contr; Contra; Contrst; Cranial; Cranium; Document; Finding; Findings; Imaging; Intracranial; Mitral regurgitation maximum velocity; MRI; Point in time; Post fossa; Rad; RADIOLOGY; Random; Skull; W contr IV; WC

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

MR Posterior fossa W contrast IVMR Post fossa W contr IVMultisection^W contrast IVRADFindPtHead>Posterior fossa

Frequently asked questions

Code details

Code36243-4

SystemLOINC

Display nameMR Posterior fossa W contrast IV

DescriptionMultisection^W contrast IV

Short nameMR Post fossa W contr IV

ComponentMultisection^W contrast IV

PropertyFind

TimingPt

System (specimen)Head>Posterior fossa

ScaleDoc

MethodMR

ClassRAD

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.14

Last changed2.61

Part names

Multisection^W contrast IVFindPtHead>Posterior fossaDocMRHeadIVContrastWPosterior fossaFindingPoint in time (spot)Magnetic resonanceIntravenous

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.