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LOINC Code 81849-2: t(1;13)(p36.13;q14.1)(PAX7,FOXO1) and t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript Molgen Doc (Bld/Tiss)

81849-2 is a LOINC code used to identify t(1;13)(p36.13;q14.1)(PAX7,FOXO1) and t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript Molgen Doc (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 t(1;13)(p36.13;q14.1)(PAX7,FOXO1) & t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript. 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 t(1;13)(p36.13;q14.1)(PAX7,FOXO1) & t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript. 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

t(1;13)(p36.13;q14.1)(PAX7,FOXO1) and t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript in Blood or Tissue by Molecular genetics method
t(1;13)(p36.13;q14.1)(PAX7,FOXO1) & t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript
Most alveolar rhabdomyosarcoma (ARMS) cases contain one of two recurrent chromosomal translocationst(2;13)(q35;q14)(PAX3,FOXO1) or t(1;13)(p36;q14)(PAX7,FOXO1).[PMID: 22710712] Genetic subtyping has identified PAX7-FOXO1, PAX3-FOXO1, and fusion-negative subsets of ARMS.[PMCID: PMC3564712]
13q14.1; 1p36.13; Blood; DNA; Document; Finding; Findings; FKH; FKH1; FKHR; Forkhead box O1A; Forkhead in rhabdomyosarcoma; FOXO1A; gene fusion; gene translocation; Genetics; Heredity; Heritable; Hup1; i; II; Inherited; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.TRANSLOCATION; Paired box gene 3; Paired box gene 7; Paired box homeotic gene 3; Paired box homeotic gene 7; Paired domain gene HUP1; PCR; Point in time; Random; RNA; T prime; t(1,13)(PAX7,FKHR) gene translocation; t(1;13)(p36;q14)+t(2;13)(q36;q14); t(1;13)(PAX7,FOXO1); t(2,13)(PAX3,FKHR) gene translocation; t(2;13)(PAX3,FKHR); Tissue; Tissue, unspecified; translocation; 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

t(1;13)(p36.13;q14.1)(PAX7,FOXO1) and t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript Molgen Doc (Bld/Tiss)t(1;13)(p36.13;q14.1)(PAX7,FOXO1) and t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript in Blood or Tissue by Molecular genetics methodt(1;13)(p36;q14)+t(2;13)(q36;q14) Bld/Tt(1;13)(p36.13;q14.1)(PAX7,FOXO1) & t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcriptMOLPATH.TRNLOCt(1;13)(p36.13;q14.1)(PAX7,FOXO1) and T(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript analysis, Blood or tissue specimenFind

Frequently asked questions

Code details

Code81849-2
SystemLOINC
Display namet(1;13)(p36.13;q14.1)(PAX7,FOXO1) and t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript Molgen Doc (Bld/Tiss)
Descriptiont(1;13)(p36.13;q14.1)(PAX7,FOXO1) & t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript
Short namet(1;13)(p36;q14)+t(2;13)(q36;q14) Bld/T
Componentt(1;13)(p36.13;q14.1)(PAX7,FOXO1) & t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript
PropertyFind
TimingPt
System (specimen)Bld/Tiss
ScaleDoc
MethodMolgen
ClassMOLPATH.TRNLOC
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.56
Last changed2.65

Consumer names

t(1;13)(p36.13;q14.1)(PAX7,FOXO1) and T(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcript analysis, Blood or tissue specimen

Part names

t(1;13)(p36.13;q14.1)(PAX7,FOXO1) & t(2;13)(q36.1;q14.4)(PAX3,FOXO1) fusion transcriptFindPtBld/TissDocMolgenFindingPoint 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.