0LR50KZ
Replacement Lower Arm and Wrist Tendon, Right to No Qualifier with Nonautologous Tissue Substitute, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | L Tendons |
| Operation | R Replacement |
| Body Part | 5 Lower Arm and Wrist Tendon, Right |
| Approach | 0 Open |
| Device | K Nonautologous Tissue Substitute |
| Qualifier | Z No Qualifier |
Operation Definition
Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part
Procedure Overview
Replacement procedures involve taking out damaged or missing tendon tissue and putting in graft material, biological or synthetic, that physically takes over the tendon's job of connecting muscle to bone. This differs from a simple repair because the patient's own tendon tissue is not sufficient to close the gap, so a substitute, such as a tendon allograft, autograft harvested from elsewhere in the body, or a synthetic tendon substitute, is used to bridge or rebuild the structure.
This approach is common in chronic or long-standing tendon ruptures where the tendon ends have retracted and scarred, making direct repair impossible, as well as in reconstructive surgeries for conditions like chronic Achilles tendon rupture, some rotator cuff reconstructions, or ligament and tendon reconstructions in the hand. The goal is to restore functional continuity so the joint can move and bear load again, even though the replaced segment is not the patient's original tissue.
Anatomy & Axis Detail
Lower Arm and Wrist Tendon, Right
The lower arm and wrist tendon group encompasses the numerous flexor and extensor tendons that cross the forearm and wrist, including the flexor carpi radialis, flexor carpi ulnaris, extensor carpi radialis and ulnaris, and the long tendons controlling finger motion as they pass through the wrist. On the right side, replacement is considered when a tendon has been lost to severe crush or avulsion injury, chronic rupture with retraction, or resection for a tumor involving the tendon, situations where the gap cannot be closed by direct suture. A tendon graft or synthetic substitute is woven or sutured into the remaining tendon stumps to restore the pulling function of the corresponding forearm muscle across the wrist. Given how many tendons travel through this region, the operative report must specify the exact tendon replaced.
Approach: Open
Open approach means the surgeon cuts through skin, mucous membrane, or other tissue layers to physically expose the target site to view before performing the procedure. It gives direct visualization and hands-on access, distinguishing it from Percutaneous approaches where instruments pass through a small puncture without exposing the site. Open is typical for procedures needing wide access, such as most laparotomies.
Device: Nonautologous Tissue Substitute
Nonautologous Tissue Substitute refers to biologic material sourced from a donor or another species, such as an allograft or xenograft, used to replace a body part. It differs from Autologous Tissue Substitute by tissue origin outside the patient's own body, and from Synthetic Substitute by being biologic rather than manufactured material.
Coding & Documentation
To assign this root operation, the documentation must show that graft material physically substitutes for a segment of tendon rather than simply reinforcing or patching it. Coders should look for explicit mention of graft harvest or a specific graft product, and confirm the graft is taking the structural place of tendon rather than being layered on top for extra strength, which would instead be a Supplement procedure.
A common documentation gap is the operative note describing graft use without clarifying whether it fully substitutes for missing tendon tissue or merely augments intact tissue; coders should query the physician when this distinction is unclear, since it changes the root operation. Another frequent error is coding the graft harvest site as part of the tendon Replacement procedure rather than as its own separate procedure on the donor body part.