CPT® Code 87209

The CPT® Code 87209 refers to a laboratory procedure known as a smear of a primary source with interpretation, specifically utilizing a complex special stain for the identification of ova and parasites. This test is crucial in the diagnostic process as it allows for the detection of various inclusion bodies, parasites, or their eggs in a range of biological specimens. The specimens that may be analyzed include blood, stool, urine, sputum, duodenal aspirate, liver or pancreatic aspirate, cerebrospinal fluid (CSF), nasal secretions, corneal or conjunctival scrapings, and biopsy tissue material. The procedure employs specialized staining techniques, such as trichrome and iron hematoxylin, which enhance the visibility of the target organisms under microscopic examination. The test is particularly significant for identifying a variety of parasitic infections. For instance, blood samples can be examined for malarial parasites, trypanosomes, and microfilaria, while stool and sputum samples may be tested for microsporidia and various parasitic larvae or ova, including those from Ascaris lumbricoides and Strongyloides. Additionally, urine samples can be screened for schistosoma, and aspirates from liver and lung abscesses may be analyzed for Entamoeba histolytica. The process involves drawing blood, typically via a fingerstick, and preparing slides with both thin and thick layers of the sample. Other cell materials are also applied in a thin layer and fixed with heat. After staining, the slides are examined microscopically to identify and count the inclusion bodies, ova, or parasites present, culminating in a comprehensive written report detailing the findings of the analysis.