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.

LOINCActiveObservation

LOINC Code 43249-2: X ray dye crystals LM Ql (Urine sed)

Name: LOINC Code 43249-2: X ray dye crystals LM Ql (Urine sed)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:28.587Z

43249-2 is a LOINC code used to identify X ray dye crystals LM Ql (Urine sed) 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 X ray dye crystals. It is commonly used with the system or sample type Urine sed.

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 X ray dye crystals. It is commonly used with the system or sample type Urine sed.

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: Observation
Method: Microscopy.light

What it does not mean

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

Key facts

X ray dye crystals [Presence] in Urine sediment by Light microscopy
X ray dye crystals
Crys; Cryst; Crystal; Kidney; LM; Micro; Micros; Microscopic; Nephrology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Renal; Screen; UA; UR; URINALYSIS; Urine sediment; Urn; UrnS; X Ray Cry

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

X ray dye crystals LM Ql (Urine sed)X ray dye crystals [Presence] in Urine sediment by Light microscopyX Ray Cry UrnS Ql MicroX ray dye crystalsUAX ray dye crystals, Urine sedimentPrThr

Frequently asked questions

Code details

Code43249-2

SystemLOINC

Display nameX ray dye crystals LM Ql (Urine sed)

DescriptionX ray dye crystals

Short nameX Ray Cry UrnS Ql Micro

ComponentX ray dye crystals

PropertyPrThr

TimingPt

System (specimen)Urine sed

ScaleOrd

MethodMicroscopy.light

ClassUA

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.17

Last changed2.56

Consumer names

X ray dye crystals, Urine sediment

Part names

X ray dye crystalsPrThrPtUrine sedOrdMicroscopy.lightPresence or ThresholdPoint in time (spot)Urine sedimentLight microscopy

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.