CPT® Code 26110

The CPT® Code 26110 refers to an arthrotomy with biopsy specifically performed on the interphalangeal joint, which is a type of surgical procedure. An arthrotomy involves making an incision into a joint to gain access for examination or treatment. In this case, the focus is on the interphalangeal joints, which are the joints located between the phalanges (the bones of the fingers). Each hand contains nine interphalangeal joints: one in the thumb and two in each of the four fingers. The procedure is typically indicated when there is a need to investigate joint pathology or obtain tissue samples for diagnostic purposes. During the procedure, the surgeon carefully dissects the soft tissues surrounding the joint, ensuring the protection of nearby nerves and blood vessels. Once the joint capsule is exposed, it is incised to allow for visual inspection and the collection of tissue samples from the joint capsule or synovial membrane. These samples are then sent for laboratory evaluation to assist in diagnosing any underlying conditions. It is important to note that this procedure is reported for each interphalangeal joint that is treated, allowing for accurate coding and billing based on the number of joints involved.