LOINCActiveBoth

LOINC Code 73748-6: APOB gene p.Arg3500Gln and p.Arg3500Trp Molgen Nom (Bld/Tiss)

73748-6 is a LOINC code used to identify APOB gene p.Arg3500Gln and p.Arg3500Trp Molgen Nom (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 APOB gene.p.Arg3500Gln & Arg3500Trp. 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 APOB gene.p.Arg3500Gln & Arg3500Trp. 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

  • APOB gene p.Arg3500Gln and p.Arg3500Trp [Identifier] in Blood or Tissue by Molecular genetics method Nominal
  • APOB gene.p.Arg3500Gln & Arg3500Trp
  • Apo B; ApoB; APOB R3500Q+R3500W; ApoB-100; apolipoprotein B; Apolipoprotein B gene; Autosomal dominant hypercholesterolemia; Blood; Familial defective apolipoprotein B-100; FDB; FLDB; Genetics; Heredity; Heritable; Identity or presence; Inherited; LDLCQ4; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.MUTATIONS; Nominal; P prime; PCR; Point in time; Random; 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

APOB gene p.Arg3500Gln and p.Arg3500Trp Molgen Nom (Bld/Tiss)APOB gene p.Arg3500Gln and p.Arg3500Trp [Identifier] in Blood or Tissue by Molecular genetics method NominalAPOB R3500Q+R3500W Bld/TAPOB gene.p.Arg3500Gln & Arg3500TrpMOLPATH.MUTAPOB gene p.Arg3500Gln and p.Arg3500Trp, Blood or tissue specimenPrid

Frequently asked questions

Code details

Code73748-6
SystemLOINC
Display nameAPOB gene p.Arg3500Gln and p.Arg3500Trp Molgen Nom (Bld/Tiss)
DescriptionAPOB gene.p.Arg3500Gln & Arg3500Trp
Short nameAPOB R3500Q+R3500W Bld/T
ComponentAPOB gene.p.Arg3500Gln & Arg3500Trp
PropertyPrid
TimingPt
System (specimen)Bld/Tiss
ScaleNom
MethodMolgen
ClassMOLPATH.MUT
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.44
Last changed2.56

Consumer names

APOB gene p.Arg3500Gln and p.Arg3500Trp, Blood or tissue specimen

Part names

APOB gene.p.Arg3500Gln & Arg3500TrpPridPtBld/TissNomMolgenAPOB gene p.Arg3500Gln and p.Arg3500TrpPresence or IdentityPoint 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.