LOINCActiveObservation

LOINC Code 94839-8: Calcium (U fetus) [Mass/Vol]

94839-8 is a LOINC code used to identify Calcium (U fetus) [Mass/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^Fetus.

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^Fetus.

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

What it does not mean

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

Key facts

Calcium [Mass/volume] in Urine from Fetus
Calcium
Fetal urine analysis for various biochemicals can indicate abnormalities in renal function prior to birth. Testing performed in the early stages of development can help catch early warning signs of renal issues that could potentially be corrected or help make decisions for the unborn child's care.[PMID1547172][PMID: 25412852] Urine is collected while the fetus is in utero by vesicostomy or fetal cystoscopy. Results are stored in the mother's chart and distinctive from the mother's results.
Ca; Cal; Chemistry; Fetal; Kidney; Level; Mass concentration; Nephrology; Point in time; QNT; Quan; Quant; Quantitative; Random; Renal; 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 (U fetus) [Mass/Vol]Calcium [Mass/volume] in Urine from FetusCalcium Ur Fetus-mCncCalciumCHEMFetal CalciumMCnc

Frequently asked questions

Code details

Code94839-8
SystemLOINC
Display nameCalcium (U fetus) [Mass/Vol]
DescriptionCalcium
Short nameCalcium Ur Fetus-mCnc
ComponentCalcium
PropertyMCnc
TimingPt
System (specimen)Urine^Fetus
ScaleQn
ClassCHEM
Example unitsmg/dl
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.68
Last changed2.68

Consumer names

Fetal Calcium

Part names

CalciumMCncPtUrine^FetusQnMass ConcentrationPoint in time (spot)

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 94839-8 | HealthAssure