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 59280-8: Urate dihydrate crystals X-ray diffraction Ql (Stone)

Name: LOINC Code 59280-8: Urate dihydrate crystals X-ray diffraction Ql (Stone)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:39.743Z

59280-8 is a LOINC code used to identify Urate dihydrate crystals X-ray diffraction Ql (Stone) 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 Urate dihydrate crystals. It is commonly used with the system or sample type Calculus.

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 Urate dihydrate crystals. It is commonly used with the system or sample type Calculus.

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: XR diffraction

What it does not mean

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

Key facts

Urate dihydrate crystals [Presence] in Stone by X-ray diffraction
Urate dihydrate crystals
Calc; Calculi; Chemistry; Crys; Cryst; Crystal; Gastro; Gastroenterology; GI; Kidney; Nephrology; Ordinal; Plain Films; Point in time; PR; QL; Qual; Qualitative; Random; Renal; Screen; Stn; Stone; Stones; UA; Urate dihyd Cry; Urates; Uric acid; Xray; X-ray

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

Urate dihydrate crystals X-ray diffraction Ql (Stone)Urate dihydrate crystals [Presence] in Stone by X-ray diffractionUrate dihyd Cry Stone Ql XR diffUrate dihydrate crystalsCHEMUrate dihydrate crystals, StonePrThr

Frequently asked questions

Code details

Code59280-8

SystemLOINC

Display nameUrate dihydrate crystals X-ray diffraction Ql (Stone)

DescriptionUrate dihydrate crystals

Short nameUrate dihyd Cry Stone Ql XR diff

ComponentUrate dihydrate crystals

PropertyPrThr

TimingPt

System (specimen)Calculus

ScaleOrd

MethodXR diffraction

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.32

Last changed2.56

Consumer names

Urate dihydrate crystals, Stone

Part names

Urate dihydrate crystalsPrThrPtCalculusOrdXR diffractionPresence or ThresholdPoint in time (spot)Calculus (stone)X-ray diffraction

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.