CPT® Code 42405

The procedure described by CPT® Code 42405 refers to an incisional biopsy of a salivary gland. This medical intervention is performed to obtain a tissue sample from the salivary gland, which may be enlarged or harbor a lump or mass. The primary purpose of conducting this biopsy is to ascertain the underlying cause of the gland's enlargement, evaluate any abnormal growths, or diagnose conditions such as Sjogren's disease. Sjogren's disease is an autoimmune disorder that leads to a significant reduction in tear production, resulting in dry eyes, as well as decreased saliva production, causing dry mouth and dry mucous membranes. The procedure involves making an incision in the skin and dissecting the subcutaneous tissues to access the salivary gland directly. This approach allows for a more comprehensive tissue sample to be obtained compared to a core needle biopsy, which is less invasive. The collected tissue is then prepared for histological evaluation, which is a separate reportable service that provides detailed information about the cellular structure of the sampled tissue, aiding in the diagnosis and management of potential pathologies associated with the salivary gland.