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 64424-5: KIR2DS4 gene del variant Molgen Ql (Bld/Tiss)

Name: LOINC Code 64424-5: KIR2DS4 gene del variant Molgen Ql (Bld/Tiss)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:43.951Z

64424-5 is a LOINC code used to identify KIR2DS4 gene del variant 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 KIR2DS4 gene deletion variant. 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 KIR2DS4 gene deletion variant. 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: Observation
Method: Molgen

What it does not mean

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

Key facts

KIR2DS4 gene deletion variant [Presence] in Blood or Tissue by Molecular genetics method
KIR2DS4 gene deletion variant
Blood; KIR2DS4 del variant; Molecular genetics; Molecular pathology; MOLPATH; Ordinal; PCR; Point in time; PR; QL; Qual; Qualitative; Random; 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

KIR2DS4 gene del variant Molgen Ql (Bld/Tiss)KIR2DS4 gene deletion variant [Presence] in Blood or Tissue by Molecular genetics methodKIR2DS4 del variant Bld/T QlKIR2DS4 gene deletion variantMOLPATHKIR2DS4 gene Deletion variant, Blood or tissue specimenPrThr

Frequently asked questions

Code details

Code64424-5

SystemLOINC

Display nameKIR2DS4 gene del variant Molgen Ql (Bld/Tiss)

DescriptionKIR2DS4 gene deletion variant

Short nameKIR2DS4 del variant Bld/T Ql

ComponentKIR2DS4 gene deletion variant

PropertyPrThr

TimingPt

System (specimen)Bld/Tiss

ScaleOrd

MethodMolgen

ClassMOLPATH

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.73

Consumer names

KIR2DS4 gene Deletion variant, Blood or tissue specimen

Part names

KIR2DS4 gene deletion variantPrThrPtBld/TissOrdMolgenPresence or ThresholdPoint 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.