LOINCActiveBoth

LOINC Code 21635-8: ATP7B gene p.Arg778Leu Molgen Ql (Bld/Tiss)

21635-8 is a LOINC code used to identify ATP7B gene p.Arg778Leu 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 ATP7B gene.p.Arg778Leu. 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 ATP7B gene.p.Arg778Leu. 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

  • ATP7B gene p.Arg778Leu [Presence] in Blood or Tissue by Molecular genetics method
  • ATP7B gene.p.Arg778Leu
  • Arg778Leu; ATP7B p.R778L; ATPase gene; ATPase, Cu++ transporting, beta polypeptide; Blood; CU(2+)- transporting beta polypeptide; Genetics; Heredity; Heritable; Inherited; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.MUTATIONS; Ordinal; P prime; PCR; Point in time; PR; PWD; QL; Qual; Qualitative; Random; Screen; Tissue; Tissue, unspecified; WB; WC1; WD; Whole blood; Whole blood or Tissue; Wilson disease; WND

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

ATP7B gene p.Arg778Leu Molgen Ql (Bld/Tiss)ATP7B gene p.Arg778Leu [Presence] in Blood or Tissue by Molecular genetics methodATP7B p.R778L Bld/T QlATP7B gene.p.Arg778LeuMOLPATH.MUTATP7B gene p.Arg778Leu, Blood or tissue specimenPrThr

Frequently asked questions

Code details

Code21635-8
SystemLOINC
Display nameATP7B gene p.Arg778Leu Molgen Ql (Bld/Tiss)
DescriptionATP7B gene.p.Arg778Leu
Short nameATP7B p.R778L Bld/T Ql
ComponentATP7B gene.p.Arg778Leu
PropertyPrThr
TimingPt
System (specimen)Bld/Tiss
ScaleOrd
MethodMolgen
ClassMOLPATH.MUT
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.56

Consumer names

ATP7B gene p.Arg778Leu, Blood or tissue specimen

Part names

ATP7B gene.p.Arg778LeuPrThrPtBld/TissOrdMolgenATP7B gene p.Arg778LeuPresence 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.