LOINCActiveBoth

LOINC Code 71790-0: Calcium Unsp time (U) [Moles/Vol]

71790-0 is a LOINC code used to identify Calcium Unsp time (U) [Moles/Vol] 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. It is commonly used with the system or sample type Urine.

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 Calcium. It is commonly used with the system or sample type Urine.

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

What it does not mean

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

Key facts

  • Calcium [Moles/volume] in Urine collected for unspecified duration
  • Calcium
  • ?Tm; Ca; Cal; Chemistry; Level; QNT; Quan; Quant; Quantitative; Substance Concentration; UA; UR; Urn

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 Unsp time (U) [Moles/Vol]Calcium [Moles/volume] in Urine collected for unspecified durationCalcium ?Tm Ur-sCncCalciumCHEMCalcium, UrineSCnc

Frequently asked questions

Code details

Code71790-0
SystemLOINC
Display nameCalcium Unsp time (U) [Moles/Vol]
DescriptionCalcium
Short nameCalcium ?Tm Ur-sCnc
ComponentCalcium
PropertySCnc
TimingXXX
System (specimen)Urine
ScaleQn
ClassCHEM
Example unitsmmol/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.40
Last changed2.73

Consumer names

Calcium, Urine

Part names

CalciumSCncXXXUrineQnSubstance ConcentrationUnspecified

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 71790-0 | HealthAssure