What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 50670-9: RBC agglutination Ql (Bld)

Name: LOINC Code 50670-9: RBC agglutination Ql (Bld)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

50670-9 is a LOINC code used to identify RBC agglutination Ql (Bld) 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 Erythrocyte agglutination. It is commonly used with the system or sample type Bld.

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 Erythrocyte agglutination. It is commonly used with the system or sample type Bld.

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

Erythrocyte agglutination [Presence] in Blood
Erythrocyte agglutination
Blood; Discocyte; Erc; Erythrocytes; HEMATOLOGY/CELL COUNTS; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; RBC; RBC agglut; Red blood cell; Red blood cells; Red blood corpuscle; Red blood corpusles; Red cell; Red cells; Screen; WB; Whole blood

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for RBC agglutination Ql (Bld) (50670-9)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

RBC agglutination Ql (Bld)Erythrocyte agglutination [Presence] in BloodRBC agglut Bld QlErythrocyte agglutinationHEM/BCRed Blood Cell Agglutination, BloodPrThr

Frequently asked questions

Code details

Code50670-9

SystemLOINC

Display nameRBC agglutination Ql (Bld)

DescriptionErythrocyte agglutination

Short nameRBC agglut Bld Ql

ComponentErythrocyte agglutination

PropertyPrThr

TimingPt

System (specimen)Bld

ScaleOrd

ClassHEM/BC

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.73

Consumer names

Red Blood Cell Agglutination, Blood

Part names

Erythrocyte agglutinationPrThrPtBldOrdPresence or ThresholdPoint in time (spot)Blood

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.