LOINCActiveBoth

LOINC Code 72207-4: t(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcript Molgen (Bld/Tiss) [# ratio]

72207-4 is a LOINC code used to identify t(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcript Molgen (Bld/Tiss) [# ratio] 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(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control 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(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control 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(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcript [# Ratio] in Blood or Tissue by Molecular genetics method
  • t(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcript
  • Translocations between chromosomes 8 and 21, resulting in a fused transcript between RUNXT1 (8q22) and RUNX1 (21q22.3), can be detected with real-time PCR. An endogenous control gene transcript (e.g. ABL1, GUS or BCR) is amplified along with the fusion transcript of interest. Standard curves of known amounts of both the control and fusion transcript are used to calculate the ratio of the fusion transcript signal to the control gene signal.
  • 21q22.3; ABL; ABL1; ABL1 transcript; Acute myelogenous leukemia 1 translocation 1, cyclin-D related; Acute myeloid leukemia; Acute myeloid leukemia 1; AML; AML1; AML1T1L myeloid translocation gene on 8q22; Blood; CBFA2; CBFA2T1; CDR; control gene; Core binding factor runt domain alpha subunit 2; DNA; ETO; gene fusion; gene translocation; Genetics; Heredity; Heritable; Inherited; MGC2796; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.TRANSLOCATION; MTG8; Number ratio; PCR; Point in time; QNT; Quan; Quant; Quantitative; Random; RNA; T prime; t(8,21)(RUNX1T1,RUNX1) gene translocation; t(8;21)(RUNX1T1,RUNX1); Tissue; Tissue, unspecified; translocation; WB; Whole blood; Whole blood or Tissue; ZMYND2

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(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcript Molgen (Bld/Tiss) [# ratio]t(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcript [# Ratio] in Blood or Tissue by Molecular genetics methodt(8;21)(RUNX1T1,RUNX1)/control Bld/Tt(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcriptMOLPATH.TRNLOCt(8;21)(q22;q22.3)(RUNX1T1,RUNX1)/control Transcript, Blood or tissue specimenNRto

Frequently asked questions

Code details

Code72207-4
SystemLOINC
Display namet(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcript Molgen (Bld/Tiss) [# ratio]
Descriptiont(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcript
Short namet(8;21)(RUNX1T1,RUNX1)/control Bld/T
Componentt(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcript
PropertyNRto
TimingPt
System (specimen)Bld/Tiss
ScaleQn
MethodMolgen
ClassMOLPATH.TRNLOC
Example units%
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.42
Last changed2.73

Consumer names

t(8;21)(q22;q22.3)(RUNX1T1,RUNX1)/control Transcript, Blood or tissue specimen

Part names

t(8;21)(q22;q22.3)(RUNX1T1,RUNX1) fusion transcript/control transcriptNRtoPtBld/TissQnMolgenNumber RatioPoint 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 72207-4 | HealthAssure