ICD-10-PCS Billable Code

0LWY37Z

Revision Lower Tendon to No Qualifier with Autologous Tissue Substitute, Percutaneous Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemL Tendons
OperationW Revision
Body PartY Lower Tendon
Approach3 Percutaneous
Device7 Autologous Tissue Substitute
QualifierZ No Qualifier

Operation Definition

Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device

Procedure Overview

Revision procedures on tendons address problems with a previously placed device, such as an anchor, suture material, or synthetic graft, that is malfunctioning, has migrated, or is otherwise not functioning as intended. Rather than performing a new repair, the surgeon goes back into the surgical site to adjust, reposition, or partially correct the existing hardware.

This type of procedure commonly follows a prior tendon repair or reconstruction where a suture anchor has pulled loose, a graft fixation device has shifted, or hardware is causing irritation or impinging on surrounding tissue. Patients typically present with recurrent pain, instability, or imaging findings showing device displacement rather than a fresh injury.

Because Revision is inherently tied to a prior procedure, it is usually performed by the same surgical team that placed the original device, or by a specialist reviewing the earlier operative report to understand what was implanted and where.

Anatomy & Axis Detail

Lower Tendon

Revision of a lower tendon corrects or adjusts a prior surgical intervention on a tendon of the lower extremity or pelvic region, such as loosened hardware from an Achilles repair, a failed patellar tendon graft, or a hamstring tenodesis that has come under increased tension from gait loading. Lower extremity tendons bear substantial weight and repetitive cyclical stress, so failures often present as pain, instability, or recurrent rupture at a previously operated site rather than as new injury. Surgeons performing revision here typically remove or reposition existing anchors, reinforce or replace degraded graft material, and re-establish appropriate tension for weight-bearing function. As with the upper tendon grouping, the code does not specify which individual lower tendon is involved, so the operative report must clearly state the target of the prior procedure being revised.

Approach: Percutaneous

Percutaneous describes entry by needle or instrument puncture through the skin or mucous membrane to reach the site of the procedure, without cutting the tissue open or using a visualizing scope. It differs from Open in that the site itself is never exposed, and from Percutaneous Endoscopic in that no endoscope is used to see internal structures. Common examples include needle biopsies and injections.

Device: Autologous Tissue Substitute

Autologous Tissue Substitute identifies a device value where material harvested from the patient's own body, such as an autograft, is used to replace or reconstruct a body part. Its defining feature is tissue origin from the patient, setting it apart from Nonautologous Tissue Substitute, sourced from a donor or animal, and Synthetic Substitute, made of manufactured material.

Coding & Documentation

Documentation must clearly establish that an existing device was corrected in place, whether by repositioning, tightening, or partial adjustment, rather than removed and replaced with a new one. If the surgeon takes the device out entirely and puts in a new device, that combination is coded as Removal followed by the appropriate replacement-type root operation, not Revision.

Coders frequently misassign Revision when the note is ambiguous about whether hardware was adjusted versus swapped out. Careful reading of the operative report for verbs like "repositioned," "tightened," or "realigned" versus "removed and replaced" is essential, and the body part value should reflect the tendon where the device sits, not necessarily the site of the original injury.

Commonly Confused With

RemovalRevision is easily confused with Removal, which applies when a device is taken out without a new one being put in, and with Replacement, used when an old device is taken out and a new device is put in its place.
RepairIt can also be confused with Repair when there is no device involved at all, in which case Repair is the correct root operation for fixing native tendon tissue.