Sign In
Regional Medical Lab
Test Directory


JAK2 Mutation Exon12 Analysis

Order Name JAK2 Ex12 Mut
Test Number: 6906911
Revision Date 10/06/2021
Test Name Methodology LOINC Code
JAK2 Exon 12 Mutation
Polymerase Chain Reaction  
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 6 mL (2 mL) Whole Blood EDTA (Lavender Top) Refrigerated
Alternate 1 6 mL (2 mL) Bone Marrow EDTA (Lavender Top) Refrigerated
Instructions CRITICAL: Do not open or share tube.
Ship ambient and overnight for Monday - Friday receipt at RML.
Stability: Ambient 5 days, Refrigerated 5 day, Frozen Unacceptable

If JAK2 V617F testing has already been performed, please contact the laboratory to determine if additional specimen will be required for JAK2 exon 12 testing.
Testing Schedule Mondays  
Expected TAT Within 7 day(s) from set up  
Notes Alternate Names: JAK2 exon 12 Mutation Analysis, Janus Tyrosine Kinase 2 Gene, Myeloproliferative Neoplasm (MPN)
Reference Lab: Tricore
Test Code: MDEX12
Click Here to view information on the Tricore website.

Pre-requisite - JAK2 V617F Mutation Analysis MUST be ran & reported as "NOT DETECTED" PRIOR to ordering the MPN Molecular Profile. If JAK2 V617F Mutation Analysis has not been previously ran on your patient, please order "JAK2 MUTAT (9100185) " and submit a separate specimen for testing. Specimen submitted for MPN Molecular Profile will be kept at optimal stability for testing until initial testing has been reported.
CPT Code(s) CPT: 81279 G0452-26
Lab Section Reference Lab