LOINCActiveObservation

LOINC Code 64423-7: KIR2DS4 gene full variant Molgen Ql (Bld/Tiss)

64423-7 is a LOINC code used to identify KIR2DS4 gene full 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 full 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 full 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 full variant [Presence] in Blood or Tissue by Molecular genetics method
  • KIR2DS4 gene full variant
  • Blood; KIR2DS4 full 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 full variant Molgen Ql (Bld/Tiss)KIR2DS4 gene full variant [Presence] in Blood or Tissue by Molecular genetics methodKIR2DS4 full variant Bld/T QlKIR2DS4 gene full variantMOLPATHKIR2DS4 gene Full variant, Blood or tissue specimenPrThr

Frequently asked questions

Code details

Code64423-7
SystemLOINC
Display nameKIR2DS4 gene full variant Molgen Ql (Bld/Tiss)
DescriptionKIR2DS4 gene full variant
Short nameKIR2DS4 full variant Bld/T Ql
ComponentKIR2DS4 gene full 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 Full variant, Blood or tissue specimen

Part names

KIR2DS4 gene full 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.

LOINC Code 64423-7 | HealthAssure