ICD-10-PCS Billable Code

0KQH4ZZ

Repair Thorax Muscle, Right to No Qualifier with No Device, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemK Muscles
OperationQ Repair
Body PartH Thorax Muscle, Right
Approach4 Percutaneous Endoscopic
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Restoring, to the extent possible, a body part to its normal anatomic structure and function

Procedure Overview

This family covers surgical repair of muscle tissue when no more specific root operation, such as resection or transfer, applies. Muscles throughout the body, from the biceps and quadriceps to the diaphragm and abdominal wall, can be torn, lacerated, ruptured, or weakened by trauma, disease, or prior surgery, and repair aims to close the defect and restore the muscle's normal structure and, as much as possible, its function.

A surgeon may suture a lacerated muscle after a knife wound, close a traumatic diaphragmatic hernia, or reinforce a weakened abdominal wall following a hernia that isn't addressed with mesh-specific coding. The approach can be open, percutaneous, or via percutaneous endoscopic technique depending on the injury's location and severity.

Because this root operation is a default when nothing else fits, it captures a wide range of everyday muscle-related fixes rather than one narrow procedure type, which is part of why it appears so frequently across trauma and general surgery encounters.

Anatomy & Axis Detail

Thorax Muscle, Right

The right thorax muscle group includes the intercostal muscles and other musculature of the right chest wall that assist respiration and protect the underlying lung and pleura. Repair is indicated after penetrating chest trauma, rib-related muscle lacerations, or dehiscence following thoracotomy or chest tube removal, where restoring the muscular layer is necessary to reestablish a stable, airtight chest wall. Because these muscles lie directly over the pleural space, repair is frequently performed in conjunction with chest tube placement or exploration for hemothorax or pneumothorax, and documentation should make clear that the muscular repair is distinct from any pleural or pulmonary procedure performed simultaneously. Precise closure here also matters for postoperative pain control and respiratory mechanics.

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

Coders assign a Repair code from this family when documentation describes closing, suturing, or otherwise restoring a damaged muscle without a more specific objective like reinforcing with synthetic material, cutting out tissue, or moving a muscle to a new site. The operative note should identify the muscle involved, the nature of the defect (laceration, rupture, dehiscence), and the technique used to close it, since these details drive both the body part and approach characters.

The most common mistake is defaulting to Repair when the documentation actually supports a more specific root operation. A hernia repaired with mesh should usually be coded as Supplement, not Repair, and a muscle flap advanced to cover a defect elsewhere may qualify as Transfer. Coders also miss that Repair is meant to be a last resort, so failing to rule out Resection, Excision, or Reattachment first is a frequent audit finding. Another pitfall is selecting the wrong specific muscle body part when the operative note only describes a general region, requiring a query back to the surgeon.

Commonly Confused With

SupplementRepair is easily confused with Supplement, which applies when mesh or other reinforcing material is added to a muscle or fascial defect, most often during hernia repair.
ReattachmentIt is also confused with Reattachment, used when a muscle has been completely detached and is reconnected to its origin or insertion, and with Transfer, where a muscle or its portion is moved intact to serve a new function while keeping its own blood supply.
ExcisionExcision and Resection are distinct because they involve removing tissue rather than restoring it.