CPT® Code 87623

The CPT® Code 87623 pertains to the detection of infectious agents through nucleic acid testing, specifically targeting the Human Papillomavirus (HPV) low-risk types, which include types 6, 11, 42, 43, and 44. HPV is a virus that can invade the skin and mucosal epithelia, leading to both clinical and subclinical infections. There are over 100 known types of HPV that can infect humans, with approximately 40 types predominantly affecting the anogenital region. Among these, certain high-risk oncogenic HPV types are often associated with high-grade squamous intraepithelial lesions (HSIL) and invasive cancers, while low-risk types are linked to conditions such as acuminate condylomas and low-grade squamous intraepithelial lesions (LSIL) of the cervix. The detection of HPV through nucleic acid testing has become a standard practice in managing cervical disease in women. The procedure involves collecting exfoliated cervical cells using tools such as a cytobrush, swab, or plastic spatula, which are then suspended in a liquid transport medium. The collected cell sample undergoes treatment with sodium hydroxide to denature the DNA, followed by hybridization with two mixtures of non-isotope single-stranded RNA probes—one for low-risk HPV types and another for high-risk types. The resulting hybridized products are transferred to a microplate with antibody-coated wells that specifically recognize the HPV DNA/RNA hybrids. An alkaline phosphatase-labeled monoclonal antibody is added, along with a chemiluminescent substrate, and the emitted light is measured using a luminometer to determine the ratio of reactivity. This code is specifically utilized when testing for the aforementioned low-risk HPV types, distinguishing it from other codes that address high-risk types or combinations of both low- and high-risk types.