CPT® Code 87593

Infectious agent detection by nucleic acid (DNA or RNA); Orthopoxvirus (eg, monkeypox virus, cowpox virus, vaccinia virus), amplified probe technique, each

A laboratory test is conducted to identify the presence of viruses belonging to the orthopoxvirus genus, which includes notable species such as monkeypox virus, cowpox virus, and vaccinia virus. These viruses are characterized as large, enveloped, double-stranded DNA viruses that have a particular affinity for infecting epidermal cells. Infections caused by orthopoxviruses can manifest in various ways, ranging from localized skin infections to more widespread systemic infections. The initial site of infection is typically the skin or mucosal surfaces, and in some cases, the respiratory tract may also be involved. This can lead to the development of characteristic pock lesions and symptoms associated with viremia as the virus disseminates through the lymphatic system throughout the body. To perform the test, a swab sample is collected from a skin lesion, which is then used to isolate viral DNA. The polymerase chain reaction (PCR) technique is employed to amplify the DNA target sequence, resulting in millions of copies of the viral DNA. This process involves the addition of amplification primers, which are short, synthetic strands of nucleic acid that are complementary to specific regions of the target nucleic acid fragment. These primers bind to the target DNA, allowing the polymerase enzyme to replicate the region and synthesize new nucleic acid. The amplified product fluoresces, enabling the detection and confirmation of the presence of the orthopox virus in the sample.