LOINCActiveBoth

LOINC Code 21748-9: Kappa LC gene rearrangements Molgen Ql (Bld/Tiss)

21748-9 is a LOINC code used to identify Kappa LC gene rearrangements Molgen Ql (Bld/Tiss) 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 Immunoglobulin kappa light chain gene rearrangements. It is commonly used with the system or sample type Bld/Tiss.

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 Immunoglobulin kappa light chain gene rearrangements. It is commonly used with the system or sample type Bld/Tiss.

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
  • Method: Molgen

What it does not mean

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

Key facts

  • Kappa LC gene rearrangements [Presence] in Blood or Tissue by Molecular genetics method
  • Immunoglobulin kappa light chain gene rearrangements
  • Arbitrary; Blood; Chains; Chn; Clonality; Genetics; Heredity; Heritable; IgL; Immune globulin; Immuno; Immunoglob; Immunoglobin; Imunoglbon; Imunoglobn; Inherited; Kappa LC gene Rear; Leukemia; Lymphoma; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.REARRANGEMENTS; Ordinal; PCR; Point in time; QL; Qual; Qualitative; Random; Rearr; Rearrangement; Screen; Tissue; Tissue, unspecified; WB; Whole blood; Whole blood or Tissue

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

Kappa LC gene rearrangements Molgen Ql (Bld/Tiss)Kappa LC gene rearrangements [Presence] in Blood or Tissue by Molecular genetics methodKappa LC gene Rear Bld/T QlImmunoglobulin kappa light chain gene rearrangementsMOLPATH.REARRANGEKappa LC gene Rearrangements, Blood or tissue specimenArb

Frequently asked questions

Code details

Code21748-9
SystemLOINC
Display nameKappa LC gene rearrangements Molgen Ql (Bld/Tiss)
DescriptionImmunoglobulin kappa light chain gene rearrangements
Short nameKappa LC gene Rear Bld/T Ql
ComponentImmunoglobulin kappa light chain gene rearrangements
PropertyArb
TimingPt
System (specimen)Bld/Tiss
ScaleOrd
MethodMolgen
ClassMOLPATH.REARRANGE
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.73

Consumer names

Kappa LC gene Rearrangements, Blood or tissue specimen

Part names

Immunoglobulin kappa light chain gene rearrangementsArbPtBld/TissOrdMolgenKappa LC gene rearrangementsArbitraryPoint in time (spot)Blood or TissueMolecular genetics

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.