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.

LOINCActiveBoth

LOINC Code 42938-1: CFTR gene allele 1 Molgen Ql (Bld/Tiss)

Name: LOINC Code 42938-1: CFTR gene allele 1 Molgen Ql (Bld/Tiss)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:28.586Z

42938-1 is a LOINC code used to identify CFTR gene allele 1 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 CFTR gene allele 1. 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 CFTR gene allele 1. 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

CFTR gene allele 1 [Presence] in Blood or Tissue by Molecular genetics method
CFTR gene allele 1
ABC35; ABCC7; Arbitrary; Blood; CBAVD; CF; CFA; CFTR allele 1; CFTR/MRP; Cystic fibrosis transmembrane conductance regulator; cystic fibrosis transmembrane conductance regulator (ATP-binding cassette sub-family C, member 7); dJ760C5.1; Genetics; Heredity; Heritable; i; Inherited; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.MUTATIONS; MRP7; Ordinal; PCR; Point in time; QL; Qual; Qualitative; Random; Screen; Tissue; Tissue, unspecified; TNR-CFTR; 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

CFTR gene allele 1 Molgen Ql (Bld/Tiss)CFTR gene allele 1 [Presence] in Blood or Tissue by Molecular genetics methodCFTR allele 1 Bld/T QlCFTR gene allele 1MOLPATH.MUTCFTR gene allele 1, Blood or tissue specimenArb

Frequently asked questions

Code details

Code42938-1

SystemLOINC

Display nameCFTR gene allele 1 Molgen Ql (Bld/Tiss)

DescriptionCFTR gene allele 1

Short nameCFTR allele 1 Bld/T Ql

ComponentCFTR gene allele 1

PropertyArb

TimingPt

System (specimen)Bld/Tiss

ScaleOrd

MethodMolgen

ClassMOLPATH.MUT

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.16

Last changed2.73

Consumer names

CFTR gene allele 1, Blood or tissue specimen

Part names

CFTR gene allele 1ArbPtBld/TissOrdMolgenArbitraryPoint 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.