LOINCActiveObservation

LOINC Code 40682-7: Urate crystals LM Ql (Body fld)

40682-7 is a LOINC code used to identify Urate crystals LM Ql (Body fld) 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 crystals. It is commonly used with the system or sample type Body fld.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 crystals. It is commonly used with the system or sample type Body fld.

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

  • Urate crystals [Presence] in Body fluid by Light microscopy
  • Urate crystals
  • B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Crys; Cryst; Crystal; Fl; Fld; FLU; Fluid; HEMATOLOGY/CELL COUNTS; LM; Micro; Micros; Microscopic; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; UA; Urates; Uric acid

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 crystals LM Ql (Body fld)Urate crystals [Presence] in Body fluid by Light microscopyUrate Cry Fld Ql MicroUrate crystalsHEM/BCUrate crystals, Body fluidPrThr

Frequently asked questions

Code details

Code40682-7
SystemLOINC
Display nameUrate crystals LM Ql (Body fld)
DescriptionUrate crystals
Short nameUrate Cry Fld Ql Micro
ComponentUrate crystals
PropertyPrThr
TimingPt
System (specimen)Body fld
ScaleOrd
MethodMicroscopy.light
ClassHEM/BC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.15
Last changed2.73

Consumer names

Urate crystals, Body fluid

Part names

Urate crystalsPrThrPtBody fldOrdMicroscopy.lightPresence or ThresholdPoint in time (spot)Body fluidLight 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.

LOINC Code 40682-7 | HealthAssure