CPT® Code 87210

The CPT® Code 87210 refers to a laboratory procedure known as a smear, specifically a primary source smear with interpretation, utilizing a wet mount technique to identify infectious agents. This procedure is essential in the diagnostic process for various infections, as it allows for the direct observation of microorganisms in clinical specimens. The wet mount technique involves preparing a sample by placing it in a thin layer on a microscope slide, which is then mixed with a suitable medium such as saline, India ink, or potassium hydroxide (KOH) solution. These preparations help to enhance the visibility of infectious agents, such as Trichomonas, yeast, and clue cells, which are commonly associated with infections in vaginal or cervical secretions, bronchial washings, sputum, body tissues, or biopsy aspirates. The examination is conducted under a microscope, where the laboratory technician looks for active movement of the infectious agents, allowing for their identification and quantification. Following the examination, a written report detailing the findings is generated, providing critical information for the healthcare provider to guide further clinical management.