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Excision Metacarpophalangeal Joint, Left to No Qualifier with No Device, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | R Upper Joints |
| Operation | B Excision |
| Body Part | V Metacarpophalangeal Joint, Left |
| Approach | 4 Percutaneous Endoscopic |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Cutting out or off, without replacement, a portion of a body part
Procedure Overview
Excision in the upper joints refers to cutting away a portion of joint tissue, such as diseased synovium, a bone spur at the joint margin, torn cartilage, or a segment of the joint capsule, without replacing what was removed. Surgeons excise tissue from the shoulder, elbow, wrist, or finger joints to relieve pain, restore range of motion, or send a tissue sample for diagnosis when imaging alone cannot explain a patient's symptoms.
Common reasons for this type of procedure include synovectomy for rheumatoid or inflammatory arthritis, debridement of a labral or cartilage tear, or removal of an osteophyte that is blocking joint movement. Because only a portion of the structure is taken and the joint itself is not replaced or reconstructed, patients typically recover function through physical therapy rather than needing an implant or prosthesis afterward.
Anatomy & Axis Detail
Metacarpophalangeal Joint, Left
In the left hand, the metacarpophalangeal joints form the primary knuckle articulations enabling the fingers to flex against the palm during grasp. Excisional procedures here typically address proliferative synovial tissue from rheumatoid arthritis, degenerative cartilage changes, or a discrete soft tissue mass such as a ganglion arising near the joint capsule. Because these joints sit just beneath the skin and are flanked by the extensor tendons dorsally and the flexor tendon sheaths volarly, surgeons must work within a narrow surgical corridor to avoid disturbing tendon gliding or collateral ligament stability. Since five separate metacarpophalangeal joints exist in the hand, documentation must clearly identify which digit's joint was excised, distinguishing the procedure from excision performed at a different metacarpophalangeal level or at the adjacent carpometacarpal row.
Approach: Percutaneous Endoscopic
Percutaneous Endoscopic combines a puncture through skin or mucous membrane with insertion of an endoscope to visualize the procedure internally, as in laparoscopic cholecystectomy. It is distinguished from plain Percutaneous by the presence of scope-guided visualization, and from Via Natural or Artificial Opening Endoscopic by its route being a new puncture rather than an existing orifice or stoma.
Coding & Documentation
Coders must confirm the operative note describes removal of only part of the joint structure, and identify whether the intent was diagnostic (a biopsy sent to pathology) or therapeutic. The approach, open versus percutaneous endoscopic, must be pulled from the documentation since it changes the code entirely, and arthroscopic synovectomies are extremely common and easy to miss if the note simply says "arthroscopy" without detailing what was excised. A frequent mistake is defaulting to Excision when the surgeon actually removed an entire structure, such as a whole bursa or the full synovial lining, which would instead be Resection; the distinction hinges on whether any portion of that anatomic structure remains.