CPT® Code 87172

1. Indications

The pinworm exam (CPT® Code 87172) is indicated for the diagnosis of enterobiasis, which is an infection caused by the pinworm, Enterobius vermicularis. This condition is often suspected in patients presenting with specific symptoms or risk factors. The following indications are commonly associated with the need for this examination:

• Itching around the anus - Patients, particularly children, may experience intense itching, especially at night, which can lead to discomfort and sleep disturbances.
• Restlessness or irritability - Children infected with pinworms may exhibit behavioral changes due to discomfort from itching.
• Visible pinworms - In some cases, adult pinworms may be seen in the anal area or in the stool.
• Family history of pinworm infection - A known case of pinworm infection in a household member may prompt testing in other family members.

2. Procedure

The procedure for conducting a pinworm exam using the cellophane tape preparation involves several key steps to ensure accurate collection and examination of potential pinworm eggs or worms. The following procedural steps are outlined:

• Step 1: Preparation - The patient is instructed to avoid bowel movements or bathing prior to the test, as this can affect the collection of pinworm eggs. It is typically recommended to perform the test in the morning before the patient has had a chance to clean the anal area.
• Step 2: Tape Application - A piece of clear cellophane tape is taken and gently pressed against the skin around the anus. This step is crucial as it allows for the collection of any eggs or adult pinworms that may be present on the skin's surface.
• Step 3: Tape Removal - The tape is carefully removed from the anal area, ensuring that any collected material adheres to the tape. Care is taken to avoid contamination during this process.
• Step 4: Examination - The tape is then placed on a glass microscope slide and examined under a microscope by a qualified laboratory technician or physician. The examination focuses on identifying pinworm eggs or adult worms, confirming the diagnosis of enterobiasis.

3. Post-Procedure

After the pinworm exam is completed, there are generally no specific post-procedure care requirements, as the procedure is non-invasive and does not involve any significant risks. Patients may resume normal activities immediately following the test. However, if pinworms are detected, the healthcare provider may discuss treatment options, which typically include antiparasitic medications. It is also advisable for patients to practice good hygiene, such as regular handwashing and keeping fingernails trimmed, to prevent reinfection and spread of pinworms, especially in household settings.