ICD-10-PCS Billable Code

0KB74ZZ

Excision Upper Arm Muscle, Right to No Qualifier with No Device, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemK Muscles
OperationB Excision
Body Part7 Upper Arm Muscle, Right
Approach4 Percutaneous Endoscopic
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

Upper Arm Muscle, Right

The upper arm muscles on the right side, principally the biceps brachii, triceps brachii, and brachialis, are large, well-defined structures that make them relatively accessible for excision compared to muscles in more crowded anatomic regions. Surgeons excise portions of these muscles to remove soft tissue tumors, sample tissue for biopsy, or resect necrotic or fibrotic muscle following trauma or compartment injury, and because the radial and musculocutaneous nerves run in close association with these muscle bellies, careful nerve identification is a routine part of the dissection. The size of these muscles generally allows for removal of an affected segment without significant functional loss, provided a sufficient portion of healthy muscle remains, and documentation should specify which of the arm's major muscles was involved along with the extent of tissue removed.

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

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.