CPT® Code 56821

The procedure described by CPT® Code 56821 involves a colposcopy of the vulva, which is a diagnostic examination performed by a physician to closely inspect the vulvar tissue for any abnormalities. A colposcope, a specialized instrument resembling binoculars mounted on a stand with an integrated light source, is utilized during this procedure. This device magnifies the vulvar tissue, enabling the physician to observe any irregularities more clearly. The examination encompasses a thorough inspection of the entire vulva, typically conducted under two or three different levels of magnification to enhance the visualization of the tissue. To facilitate the identification of abnormal cells, acetic acid is applied to the vulva, which helps to highlight any atypical areas. Following this, various colored filters are employed to examine the blood vessels and detect any unusual patterns that may indicate pathology. Additionally, an iodine solution is applied to stain the glycogen present in the cells; normal cells will exhibit a dark-brown coloration, while areas that do not take up the stain are considered suspicious and are subsequently biopsied. This code is specifically used when one or more biopsies are performed during the colposcopy, distinguishing it from CPT® Code 56820, which is designated for colposcopy of the vulva without biopsy.