CPT® Code 0845T

Add-On Code

Digitization of glass microscope slides for immunofluorescence, per specimen; initial single antibody stain procedure (List separately in addition to code for primary procedure)

The CPT® Code 0845T refers to the process of digitizing glass microscope slides specifically for immunofluorescence, focusing on the initial single antibody stain procedure. This procedure involves converting traditional glass microscope slides into a digital format, allowing for the captured images to be stored either on a local computer server or within a cloud-based archive. The digitization process enhances the ability to examine the slides remotely, enabling pathologists to analyze the images without the need for direct visualization through a microscope. This method not only facilitates remote consultations but also allows for the application of computer algorithms that can assist in providing pathologic diagnoses. The information obtained from the digitized slides can be managed and interpreted within an increasingly sophisticated image-based environment. The procedure is particularly relevant when performing an immunofluorescence antibody stain, such as on a skin biopsy specimen, where the digitization of the microscope slides occurs concurrently. It is important to report CPT® Code 0845T for the first initial single antibody stain, while subsequent single antibody stain digitizations should be reported using CPT® Code 0846T.