CPT® Code 0757T

Add-On Code

Digitization of glass microscope slides for special stain, including interpretation and report, group II, all other (eg, iron, trichrome), except stain for microorganisms, stains for enzyme constituents, or immunocytochemistry and immunohistochemistry (List separately in addition to code for primary procedure)

The CPT® Code 0757T refers to the process of digitizing glass microscope slides that have undergone special staining, which includes the interpretation and reporting of the findings. This procedure is categorized under group II, encompassing all special stains except those specifically used for microorganisms, enzyme constituents, or immunocytochemistry and immunohistochemistry. The digitization process involves scanning glass slides into a digital format, allowing the captured images to be stored either on a local computer server or within a cloud-based archive. This digital transformation facilitates further examination by remote pathologists or through the use of computer algorithms, which can assist in providing a pathologic diagnosis. The slides that are digitized typically originate from surgical biopsy tissues, cytology cell samples, blood, or other bodily substances. Special stains utilized in this process may include trichrome staining, which helps differentiate collagen from smooth muscle in tumors; iron staining, which identifies non-heme iron deposits in tissues such as the liver and bone marrow; and Congo red staining, which is used to detect amyloids in tissue samples. It is important to report code 0757T in conjunction with a group II special stain for all other types, excluding those for microorganisms, enzyme constituents, or immunohistochemistry, when the digitization of slides is performed simultaneously to acquire a pathological diagnosis along with the interpretation and report, distinguishing it from traditional direct visualization through a microscope.