ICD-10-PCS Billable Code

0CUT0KZ

Supplement Vocal Cord, Right to No Qualifier with Nonautologous Tissue Substitute, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemC Mouth and Throat
OperationU Supplement
Body PartT Vocal Cord, Right
Approach0 Open
DeviceK Nonautologous 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 add biological or synthetic material to a mouth or throat structure that is still substantially present, reinforcing or augmenting its function rather than replacing it outright. Pharyngoplasty using a graft to bulk up the throat wall for velopharyngeal insufficiency, augmentation of the soft palate to improve closure during speech, or grafting to reinforce a thin area of tissue after healing are typical examples. The native structure remains and continues to function; the added material simply strengthens or enlarges it.

These procedures are commonly performed for functional problems such as speech difficulties following cleft palate repair, or to improve swallowing and airway protection when tissue has thinned or weakened over time. They are also used cosmetically or functionally to augment structures like the lips. Because the underlying body part stays in place, supplement is generally a lower-risk undertaking than a procedure that removes and substitutes an entire structure.

Anatomy & Axis Detail

Vocal Cord, Right

The right vocal cord is one of the paired folds within the larynx whose vibration against the opposing cord generates voice, and whose apposition during swallowing helps protect the lower airway. Supplementation of this structure, often called medialization or augmentation, involves injecting or implanting material such as fat, collagen, hyaluronic acid, or a solid implant lateral to the cord to add bulk and shift it toward the midline. This approach is used when the right cord is bowed, atrophied, or paralyzed and cannot meet its counterpart during phonation, resulting in a breathy or weak voice and sometimes aspiration. Because the procedure augments the existing cord rather than replacing it, precise placement is essential to avoid airway compromise, and laterality must be documented accurately given the paired nature of this structure.

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

Coders should confirm the operative note describes reinforcing or augmenting a structure that remains anatomically present, with language such as "augmentation," "reinforcement graft," or "bulking injection," rather than removal of the existing tissue. A common mistake is coding supplement when the surgeon actually replaced a missing portion of a structure, which belongs under replacement instead; the deciding question is always whether the body part is intact and simply being reinforced. Coders should also distinguish supplement from repair, since a repair closes a defect using the patient's own tissue while supplement specifically adds outside material to strengthen the area.

Commonly Confused With

ReplacementReplacement is the closest and most frequently confused root operation, separated by whether the body part is missing (replacement) or present and being reinforced (supplement).
RepairRepair can overlap in appearance when both close and reinforce tissue in the same operative act, but repair alone does not involve adding graft material for augmentation.
RepositionReposition is unrelated in purpose, since it relocates existing tissue rather than adding material to strengthen it.