CPT code 20999: Unlisted musculoskeletal procedure billing guide

CPT code 20999 pays only when the special report names a comparable CPT code. Here’s what Medicare and commercial payers require.
CPT Code 20955: Bone graft with microvascular anastomosis, fibula

CPT Code 20955 is a vascularized fibula bone graft. Payers want the donor site, pedicle, and anastomosis technique named in the note.
CPT code 27619: Subfascial tumor excision

CPT code 27619 covers excision of a soft tissue tumor in the leg or ankle. It applies when the tumor lies subfascially and measures less than 5 cm. Specifically, subfascial means the surgeon worked below the deep fascia, often inside muscle. As a result, that one detail separates 27619 from the subcutaneous codes beside it. […]
CPT code 15201: Full thickness skin graft billing guide

CPT code 15201 is the add-on code for a full thickness skin graft on the trunk. It covers each additional 20 sq cm of graft beyond the first 20, which belongs to CPT 15200. That pairing is where the money goes missing. Send 15201 out on its own and the claim bounces straight back. Get […]
CPT code 27606: Percutaneous Achilles tenotomy billing guide

What CPT code 27606 covers CPT code 27606 is the billable code for a percutaneous tenotomy of the Achilles tendon performed under general anesthesia. Specifically, the official American Medical Association (AMA) descriptor reads: Tenotomy, percutaneous, Achilles tendon (separate procedure); general anesthesia. That parenthetical carries real billing weight, and so does the anesthesia clause. Together, both […]
CPT code 21936: Radical resection of soft tissue tumor

CPT code 21936 covers radical resection of a soft tissue tumor of the back or flank measuring 5 cm or greater. It applies when the tumor is malignant or locally aggressive and the surgeon removes it with wide margins from deep tissue. The size on the pathology report, not the pre-operative estimate, decides whether 21936 […]
CPT Code 21920: Biopsy, soft tissue of back or flank

CPT code 21920: Definition and clinical description CPT code 21920 describes a biopsy of soft tissue of the back or flank; superficial. The American Medical Association (AMA) maintains the CPT code set and places it in the Excision Procedures on the Back and Flank subsection. That subsection sits in the Musculoskeletal System chapter and spans […]
CPT Code 20937: Autograft for spine surgery billing guide

CPT Code 20937 is a modifier 51-exempt add-on for morselized autograft taken through a separate incision, billed with a primary fusion code.
CPT code 21179: Forehead reconstruction billing guide

CPT code 21179 covers reconstruction of the entire or majority of the forehead and/or supraorbital rims. It applies when the graft material does not come from the patient. Managed under plastic surgery EMR workflows, this code sits in the AMA’s “Repair, Revision, and/or Reconstruction of Bones of the Skull, Face, and Jaws” category. Official AMA […]
CPT code 21282: Lateral canthopexy billing, RVUs, and modifiers

CPT code 21282 covers lateral canthopexy. Here are the 2026 RVUs and Medicare rate, the modifier 50 rules, the ICD-10 pairings, and why canthoplasty is coded 67950.