LOINCActiveObservation

LOINC Code 1020-7: E Ag Ql (RBC donor)

1020-7 is a LOINC code used to identify E Ag Ql (RBC donor) 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 E Ag. It is commonly used with the system or sample type RBC^Donor.

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 E Ag. It is commonly used with the system or sample type RBC^Donor.

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

  • E Ag [Presence] on Red Blood Cells from Donor
  • E Ag
  • Antigen; Antigens; BLOOD BANK; Donr; Erythrocytes; Hematology; Heme; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Red blood cells; Red blood corpusles; Rh Blood Group System; 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

E Ag Ql (RBC donor)E Ag [Presence] on Red Blood Cells from DonorE Ag RBC Donr QlE AgBLDBKE antigen, Donor Red blood cellsPrThr

Frequently asked questions

Code details

Code1020-7
SystemLOINC
Display nameE Ag Ql (RBC donor)
DescriptionE Ag
Short nameE Ag RBC Donr Ql
ComponentE Ag
PropertyPrThr
TimingPt
System (specimen)RBC^Donor
ScaleOrd
ClassBLDBK
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

E antigen, Donor Red blood cells

Part names

E AgPrThrPtRBC^DonorOrdPresence or ThresholdPoint in time (spot)Red Blood Cells^Donor

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 1020-7 | HealthAssure