ICD-10-PCS Billable Code

0LX34ZZ

Transfer Upper Arm Tendon, Right to No Qualifier with No Device, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemL Tendons
OperationX Transfer
Body Part3 Upper Arm Tendon, Right
Approach4 Percutaneous Endoscopic
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Moving, without taking out, all or a portion of a body part to another location to take over the function of all or a portion of a body part

Procedure Overview

Tendon transfer procedures move a functioning tendon, along with its muscle attachment, from its original insertion point to a new location so it can take over a movement that has been lost due to nerve injury, muscle paralysis, or irreparable tendon damage elsewhere. The tendon is not removed from the body; it is rerouted while keeping its blood supply and nerve connection intact.

This approach is used when restoring the original damaged tendon is not possible or would not regain function, such as after a peripheral nerve injury that has left a muscle group permanently unable to fire, or in longstanding rotator cuff tears where the original muscle-tendon unit is no longer viable. A classic example is transferring a wrist flexor tendon to restore finger extension after radial nerve palsy.

Because the transferred tendon must learn a new job, rehabilitation includes retraining the patient to consciously activate the muscle for its new purpose, in addition to standard healing time.

Anatomy & Axis Detail

Upper Arm Tendon, Right

Transfer of the right upper arm tendon relocates a tendon in the biceps or triceps region, most classically the distal biceps tendon rerouted in reconstructions for chronic rupture, or a tendon repurposed to restore elbow flexion or extension after nerve palsy. The upper arm's tendons cross a single major joint and carry substantial mechanical load during lifting and pushing, so the transferred tissue must be tensioned to recreate normal elbow mechanics without over- or under-constraining motion. Because this segment sits between the shoulder and forearm, surgeons must also consider how the new tendon path interacts with neurovascular structures running along the arm. Right-side designation is clinically significant for matching the procedure to hand dominance and functional rehabilitation goals.

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

Correct code assignment depends on documentation identifying both the tendon that was moved and the body part whose function it is now taking over, since ICD-10-PCS captures the qualifier for the new functional purpose. The operative note should describe the tendon's original attachment, its new insertion site, and confirm that it retained its native blood and nerve supply throughout the move.

A common mistake is coding a tendon transfer as Transplantation, which applies only when tissue from another individual or a different body site is used with no native vascular connection preserved. Another frequent error is failing to capture the qualifier value that reflects the body part whose function is being restored, since Transfer in ICD-10-PCS requires specifying what the moved tendon is now accomplishing.

Commonly Confused With

TransplantationTransfer is frequently confused with Transplantation, which involves putting in living tissue from another person or a different site to physically take the place of a body part, whereas Transfer keeps the tissue's own blood supply and repositions it within the same individual.
RepositionIt is also distinguished from Reposition, which moves a body part to a normal or other suitable location without giving it a new function, since Transfer specifically means the moved tendon now performs the job of a different body part.