CPT® Code 49180

The CPT® Code 49180 refers to a percutaneous needle biopsy procedure specifically targeting an abdominal or retroperitoneal mass. This procedure is essential for obtaining tissue samples from masses located within the abdominal cavity or the retroperitoneal space, which is the area behind the peritoneum that houses various organs, including the kidneys and adrenal glands. The term "percutaneous" indicates that the biopsy is performed through the skin, utilizing a needle to access the mass directly. This method is often preferred due to its minimally invasive nature, which typically results in less discomfort and a quicker recovery time compared to open surgical biopsies.

During the procedure, imaging guidance is commonly employed to ensure precise localization of the mass. This imaging may include ultrasound, CT scans, or other modalities that allow the physician to visualize the mass in real-time. The use of continuous imaging guidance is crucial as it aids in the accurate placement of the biopsy needle, thereby increasing the likelihood of obtaining a representative tissue sample. The physician may need to make multiple passes through the same entry point or utilize different puncture sites to secure an adequate sample for analysis. Once the tissue is collected, it is sent to a laboratory for histologic evaluation, which is a separate reportable service that assesses the cellular structure of the tissue to aid in diagnosis.