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LOINC Code 33210-6: Transferrin receptor.soluble [Moles/Vol]

33210-6 is a LOINC code used to identify Transferrin receptor.soluble [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 Transferrin receptor.soluble. It is commonly used with the system or sample type Ser/Plas.

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 Transferrin receptor.soluble. It is commonly used with the system or sample type Ser/Plas.

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

  • Transferrin receptor.soluble [Moles/volume] in Serum or Plasma
  • Transferrin receptor.soluble
  • Chemistry; Level; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Rec; Recept; Receptors; Recp; Recptr; SerP; SerPl; SerPlas; Serum; Serum or plasma; Siderophilin; SR; sTfR; Substance Concentration; Tf; Trf; TRFRN

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

Transferrin receptor.soluble [Moles/Vol]Transferrin receptor.soluble [Moles/volume] in Serum or PlasmasTfR SerPl-sCncTransferrin receptor.solubleCHEMTransferrin receptor.soluble, BloodSCnc

Frequently asked questions

Code details

Code33210-6
SystemLOINC
Display nameTransferrin receptor.soluble [Moles/Vol]
DescriptionTransferrin receptor.soluble
Short namesTfR SerPl-sCnc
ComponentTransferrin receptor.soluble
PropertySCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example unitsnmol/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.73

Consumer names

Transferrin receptor.soluble, Blood

Part names

Transferrin receptor.solubleSCncPtSer/PlasQnSubstance ConcentrationPoint in time (spot)Serum or Plasma

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.