CPT® Code 17314

Add-On Code

Mohs micrographic technique, including removal of all gross tumor, surgical excision of tissue specimens, mapping, color coding of specimens, microscopic examination of specimens by the surgeon, and histopathologic preparation including routine stain(s) (eg, hematoxylin and eosin, toluidine blue), of the trunk, arms, or legs; each additional stage after the first stage, up to 5 tissue blocks (List separately in addition to code for primary procedure)

The Mohs micrographic technique, as described by CPT® Code 17314, is a specialized surgical procedure designed for the precise removal of skin cancers, particularly basal cell carcinoma and squamous cell carcinoma. This technique is unique in that it combines the roles of surgeon and pathologist, allowing for immediate examination of the excised tissue. The procedure involves the meticulous removal of cancerous skin in thin layers, which are then subjected to histopathologic preparation, including routine staining methods such as hematoxylin and eosin or toluidine blue. This staining process is crucial as it enables the surgeon to visually assess the presence of cancer cells in the removed tissue. The Mohs technique is characterized by its high success rate in completely excising tumors while preserving as much healthy tissue as possible. The surgeon employs a mapping and color-coding system for the excised specimens, which aids in tracking the tumor's removal and identifying any remaining cancerous cells. This systematic approach ensures that the excision is thorough and that the patient has the best chance of recovery with minimal scarring. CPT® Code 17314 specifically refers to the additional stages of this procedure, which occur after the initial stage, allowing for further excision of tissue blocks as needed, up to five blocks per stage. This coding structure is essential for accurate billing and documentation in the context of Mohs micrographic surgery.