CPT® Code 78261

1. Indications

The procedure of gastric mucosa imaging (CPT® Code 78261) is indicated for the evaluation of various congenital anomalies that may affect the gastrointestinal tract. The specific indications for this imaging study include:

• Meckel's diverticulum - A congenital condition characterized by the presence of a small pouch (diverticulum) in the ileum, which can lead to complications such as bleeding or obstruction.
• Small bowel duplication - A rare congenital anomaly where a segment of the small intestine is duplicated, potentially causing obstruction or other gastrointestinal issues.
• Gastric duplication - A condition where there is a duplication of the stomach, which can lead to various complications depending on its size and location.
• Intrathoracic foregut - This refers to the abnormal positioning of the foregut structures within the thoracic cavity, which can affect normal digestive function.
• Duplication cysts - These are cystic structures that can form in the gastrointestinal tract due to abnormal development, potentially leading to obstruction or infection.

2. Procedure

The gastric mucosa imaging procedure involves several key steps to ensure accurate imaging and diagnosis. The process begins with the establishment of an intravenous line, which is essential for the administration of the radiolabeled isotope tracer. Once the IV line is in place, the tracer, 99mTc-pertechnetate, is injected directly into the patient's circulatory system. This tracer is specifically chosen for its ability to accumulate in both normal and ectopic gastric mucosa.

After the injection, a prescribed waiting period is observed to allow the tracer to circulate and localize in the gastric tissues. Following this interval, the patient is positioned on an imaging table, with the gamma camera strategically placed over the anterior abdomen. If the study requires, the camera may also be positioned over the chest area. The scanning process is then initiated, during which the gamma camera captures images at specific intervals. The radioactive energy emitted from the tracer is detected and converted into visual images, allowing for the assessment of the gastric mucosa.

During the imaging, both normal gastric mucosa and any ectopic areas will accumulate the radioisotope tracer at a similar intensity, facilitating the identification of any abnormalities. The physician will then interpret the images obtained from the study, analyzing the distribution of the tracer and identifying any areas of concern. A comprehensive written report detailing the findings of the gastric imaging study is subsequently provided by the physician.

3. Post-Procedure

After the completion of the gastric mucosa imaging procedure, there are typically no specific post-procedure care requirements, as the procedure is non-invasive and does not involve any significant recovery time. Patients may be monitored briefly to ensure there are no immediate adverse reactions to the radiolabeled tracer. It is important for the physician to communicate any relevant findings from the imaging study to the patient and discuss potential next steps based on the results. Patients are generally advised to resume their normal activities following the procedure, unless otherwise instructed by their healthcare provider.