LOINCActiveBoth

LOINC Code 6296-8: Complement C3b-C4b receptor Ql (RBC)

6296-8 is a LOINC code used to identify Complement C3b-C4b receptor Ql (RBC) 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 Complement C3b-C4b receptor. It is commonly used with the system or sample type RBC.

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 Complement C3b-C4b receptor. It is commonly used with the system or sample type RBC.

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

  • Complement C3b-C4b receptor [Presence] in Red Blood Cells
  • Complement C3b-C4b receptor
  • Comp; Complement receptor type 1; Complmt; CR 1; Erythrocytes; HEMATOLOGY/CELL COUNTS; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Rec; Recept; Receptors; Recp; Recptr; Red blood cells; Red blood corpusles; Screen

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

Complement C3b-C4b receptor Ql (RBC)Complement C3b-C4b receptor [Presence] in Red Blood CellsC3b-C4b Recep RBC QlComplement C3b-C4b receptorHEM/BCComplement C3b-C4b Receptor, Red blood cellsPrThr

Frequently asked questions

Code details

Code6296-8
SystemLOINC
Display nameComplement C3b-C4b receptor Ql (RBC)
DescriptionComplement C3b-C4b receptor
Short nameC3b-C4b Recep RBC Ql
ComponentComplement C3b-C4b receptor
PropertyPrThr
TimingPt
System (specimen)RBC
ScaleOrd
ClassHEM/BC
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0d
Last changed2.56

Consumer names

Complement C3b-C4b Receptor, Red blood cells

Part names

Complement C3b-C4b receptorPrThrPtRBCOrdPresence or ThresholdPoint in time (spot)Red Blood Cells

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 6296-8 | HealthAssure