LOINCActiveBoth

LOINC Code 53100-4: Calcium (Total parental nutrition) [Moles/Vol]

53100-4 is a LOINC code used to identify Calcium (Total parental nutrition) [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 TPN.

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 TPN.

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 Total parental nutrition
  • Calcium
  • Ca; Cal; Chemistry; Level; Point in time; QNT; Quan; Quant; Quantitative; Random; Substance concentration; Total parental nutrition

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 (Total parental nutrition) [Moles/Vol]Calcium [Moles/volume] in Total parental nutritionCalcium TPN-sCncCalciumCHEMCalcium, Total parental nutritionSCnc

Frequently asked questions

Code details

Code53100-4
SystemLOINC
Display nameCalcium (Total parental nutrition) [Moles/Vol]
DescriptionCalcium
Short nameCalcium TPN-sCnc
ComponentCalcium
PropertySCnc
TimingPt
System (specimen)TPN
ScaleQn
ClassCHEM
Example unitsmmol/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.24
Last changed2.70

Consumer names

Calcium, Total parental nutrition

Part names

CalciumSCncPtTPNQnSubstance ConcentrationPoint in time (spot)Total parental nutrition

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 53100-4 | HealthAssure