Alternative Name
Philadelphia chromosome, BCR-ABL1 Major, BCR-ABL1 Minor, BCR/ABL1 Standard
Methodology
Molecular
Test Description

Real-time RT-PCR for quantitative detection of t(9;22) BCR-ABL1 fusion transcripts that result in major p210 (E13, E14) or minor p190 (E1) fusion proteins with option to add p230 detection (micro or atypical variant). p230 testing may be ordered as a stand-alone test. For p210 and p190, analytical sensitivity is 1 tumor cell in 100,000 normal cells, log reduction score and percent abnormal are reported, and longitudinal data will appear as a NeoTRACK Result on the report. For p230, results are reported as percent abnormal. Testing is New York approved for p210 and p190 only.

Clinical Significance

Useful for diagnosis and monitoring of Philadelphia chromosome-positive cases of CML and ALL.

Specimen Requirements
  • Bone Marrow: 2 mL EDTA tube
  • Peripheral Blood: 5 mL EDTA tube
Storage and Transportation

Use cold pack for transport, making sure cold pack is not in direct contact with specimen. Ship same day as drawn whenever possible; specimens <72 hours old preferred.

CPT Code(s)*
81479x1, add 81208x1 if p230 testing is performed
Turnaround Time

7 days

Level of Service
Global

*The CPT codes provided with our test descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.