ICD-10-PCS Billable Code

0YUK07Z

Supplement Ankle Region, Right to No Qualifier with Autologous Tissue Substitute, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemY Anatomical Regions, Lower Extremities
OperationU Supplement
Body PartK Ankle Region, Right
Approach0 Open
Device7 Autologous Tissue Substitute
QualifierZ No Qualifier

Operation Definition

Putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part

Procedure Overview

Supplement procedures in this family involve placing biological or synthetic material into or onto a lower extremity anatomical region to physically reinforce or add bulk to existing tissue, rather than to replace missing structure. Surgical mesh used to reinforce weakened fascia or a defect in the leg or foot region, or an autologous or donor graft layered onto tissue to strengthen it, are typical examples.

This type of procedure is chosen when the body part is present and largely intact but needs additional support to hold its shape, resist strain, or heal properly, such as reinforcing a soft-tissue closure after trauma or a prior surgical repair. It differs from simply closing or repairing a wound because material is deliberately added to bolster the area beyond what the patient's own tissue can currently provide.

Anatomy & Axis Detail

Ankle Region, Right

The right ankle region, encompassing the joint capsule and supporting ligamentous and tendinous structures around the tibiotalar joint, is supplemented when these soft tissues are attenuated from chronic instability, prior sprain, or degenerative laxity but remain present and repairable rather than requiring outright replacement. Ankle stability depends heavily on the integrity of the lateral and medial ligament complexes, so reinforcing material, often tendon allograft or synthetic augmentation, is placed to restore tensile support to these structures while preserving the native anatomy. The confined soft tissue space around the ankle and the proximity of the peroneal tendons and neurovascular structures require precise surgical technique during placement. A history of recurrent ankle sprains or prior ligament repair is a frequent clinical antecedent to this procedure.

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: 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

A coder assigns Supplement when documentation shows material was added to reinforce or augment a body part that remains present, with the graft or mesh serving a support function rather than substituting for an absent structure. The note should specify the material used, whether autograft, allograft, or synthetic mesh, since device and substance qualifiers affect code selection. A common error is coding Supplement when the material is actually replacing a resected or absent structure, which belongs to Replacement instead, or coding Repair when reinforcing material was in fact placed, which should be captured as Supplement.

Commonly Confused With

ReplacementSupplement is most often confused with Replacement, but Replacement substitutes for a body part that is absent or has been taken out, while Supplement reinforces a body part that remains in place.
RepairIt is also distinguished from Repair, since Repair restores tissue using the patient's own structure without adding reinforcing material.
InsertionInsertion is a related but separate concept, used when a device is placed to monitor, assist, or perform a function rather than to physically reinforce tissue.