HealthAssure
HealthAssureGood Life
LOINCActiveObservation

LOINC Code 5773-7: Calcium carbonate crystals LM Ql (Urine sed)

5773-7 is a LOINC code used to identify Calcium carbonate 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 Calcium carbonate crystals. It is commonly used with the system or sample type Urine sed.

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 Calcium carbonate 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

  • Calcium carbonate crystals [Presence] in Urine sediment by Light microscopy
  • Calcium carbonate crystals
  • Apatite crystals; Ca; Ca Carbonate; Ca Carbonate Cry; CaCO3; Cal; Carb; Carbonic acid; 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

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

Calcium carbonate crystals LM Ql (Urine sed)Calcium carbonate crystals [Presence] in Urine sediment by Light microscopyCa Carbonate Cry UrnS Ql MicroCalcium carbonate crystalsUACalcium carbonate crystals, Urine sedimentPrThr

Frequently asked questions

Code details

Code5773-7
SystemLOINC
Display nameCalcium carbonate crystals LM Ql (Urine sed)
DescriptionCalcium carbonate crystals
Short nameCa Carbonate Cry UrnS Ql Micro
ComponentCalcium carbonate 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 released1.0
Last changed2.73

Consumer names

Calcium carbonate crystals, Urine sediment

Part names

Calcium carbonate 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.