LOINCActiveBoth

LOINC Code 48409-7: T cell crossmatch Ql (Bld donor)

48409-7 is a LOINC code used to identify T cell crossmatch Ql (Bld 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 T cell crossmatch. It is commonly used with the system or sample type Bld^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 T cell crossmatch. It is commonly used with the system or sample type Bld^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: Both

What it does not mean

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

Key facts

  • T cell crossmatch [Presence] in Blood from Donor
  • T cell crossmatch
  • Blood; BLOOD BANK; Donr; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; T Cell XM; T prime; UCHL-1; 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.

Common synonyms

T cell crossmatch Ql (Bld donor)T cell crossmatch [Presence] in Blood from DonorT Cell XM Bld Donr QlT cell crossmatchBLDBKT cell crossmatch, Donor BloodPrThr

Frequently asked questions

Code details

Code48409-7
SystemLOINC
Display nameT cell crossmatch Ql (Bld donor)
DescriptionT cell crossmatch
Short nameT Cell XM Bld Donr Ql
ComponentT cell crossmatch
PropertyPrThr
TimingPt
System (specimen)Bld^Donor
ScaleOrd
ClassBLDBK
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.73

Consumer names

T cell crossmatch, Donor Blood

Part names

T cell crossmatchPrThrPtBld^DonorOrdPresence or ThresholdPoint in time (spot)Blood^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 48409-7 | HealthAssure