NEW TEST
T and B Lymphocyte Subsets, Quantitative
Order Code: QTBNK
Fee Code: 23043 x2, 23047, 23044, 23045 (CPT 86355 x2, 86357, 86359, 86360)
The MLabs Hematology Laboratory will implement new test T and B Lymphocyte Subsets, Quantitative (order code QTBNK) effective October 23, 2024. This test will include quantitation of T and B lymphocytes using the following markers: CD3, CD4, CD8, CD16/56, CD19, and CD20. This test should be used to aid in the diagnosis and monitoring of patients with primary or acquired immunodeficiencies, immune reconstitution following transplantation, and those undergoing certain immune therapies, such as Rituxan.
The new order code QTBNK will replace the following which will be discontinued:
- Immunodeficiencies Profile, Acquired (order code I3)
- Immunodeficiencies Profile, Primary (order code IMM)
- Organ Transplant Monitoring Profile (order code TXP)
- Rituximab Therapy Profile (order code RITUX)
The change to a single orderable test will increase testing availability and performance efficiency, ultimately lowering turnaround times and improving patient care.