CPT® Code 84238

A receptor assay is a laboratory test conducted to evaluate the presence of specific receptors on tumor cells, which can indicate how the tumor may respond to certain therapies. In the context of CPT® Code 84238, this assay focuses on non-endocrine receptors, which are distinct from endocrine receptors that are typically associated with hormones like estrogen or progesterone. The presence of these receptors is crucial because they can influence the growth and behavior of cancer cells. Receptors are specialized molecules located on the surface of cells that bind to specific substances, such as hormones, and transmit signals that can affect cell growth and reproduction. When a tumor is tested for non-endocrine receptors, the results can help determine whether the cancer cells are dependent on non-endocrine hormones for their growth. Tumors that are receptor negative for the specific non-endocrine hormone being tested are less likely to respond to therapies targeting those receptors, while receptor positive tumors may be more amenable to treatment options that are designed to interact with those non-endocrine receptors. This distinction is vital for tailoring effective treatment strategies for patients with cancer.