ICD-10-PCS Billable Code

0KBH3ZZ

Excision Thorax Muscle, Right to No Qualifier with No Device, Percutaneous Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemK Muscles
OperationB Excision
Body PartH Thorax Muscle, Right
Approach3 Percutaneous
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Cutting out or off, without replacement, a portion of a body part

Procedure Overview

Excision procedures on the muscles remove a portion of a muscle, but not the entire structure, most commonly to obtain a biopsy sample, to debride damaged or infected tissue, or to remove a localized mass or lesion within the muscle. The remainder of the muscle stays in place and continues to function.

This family covers a wide range of clinical situations, from a small diagnostic biopsy of muscle tissue to evaluate a suspected myopathy, to debridement of necrotic muscle following trauma or severe infection, to removal of a benign tumor confined to a muscle. What ties these together is that only part of the muscle is taken, leaving the rest intact.

Because the tissue removed is often sent for pathological or microbiological analysis, excision plays a diagnostic role in many cases in addition to a therapeutic one.

Anatomy & Axis Detail

Thorax Muscle, Right

Right thorax muscle refers to the musculature of the chest wall on that side, including intercostal muscles, serratus anterior, and portions of the pectoral group, distinct from underlying rib or pleural structures. Excision of this tissue is typically performed to remove a chest wall soft tissue tumor, sample a suspicious mass, or address muscle involved by a nearby malignancy such as a lung or breast cancer extending into the wall. Because the thorax muscles lie directly over the pleura and lungs, excision requires attention to depth to avoid entering the thoracic cavity, and any breach would instead be captured by a different body part or approach. Documentation should note whether the excision was limited to muscle or extended into adjacent structures.

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.

Coding & Documentation

Documentation should describe cutting out a portion, sample, or segment of muscle, with the specific muscle named and the extent of tissue removed described clearly enough to distinguish it from removal of the whole muscle. Pathology or culture results are often present when the excision was diagnostic.

One recurring mistake is coding Excision for debridement performed at the bedside without excisional technique, which if truly nonexcisional would not be captured under Muscles Excision at all, or coding Excision when in fact the entire muscle was taken, which should be Resection. Coders also need to be careful not to code a biopsy as Extraction, since cutting tissue out is Excision even when the intent is purely diagnostic.

Commonly Confused With

ResectionResection is the direct counterpart, separated only by extent: taking the entire named muscle is Resection, while taking any lesser portion is Excision, so operative documentation of the amount removed is essential.
DestructionDestruction is sometimes confused with Excision when tissue is both destroyed and partially removed in the same operative session; the excised portion is coded separately from any destroyed tissue that was not taken out of the body.
DrainageDrainage is distinct in that it removes fluid rather than solid muscle tissue, even though both may occur through the same incision during treatment of an abscess.