ICD-10-PCS Billable Code

0CBS4ZZ

Excision Larynx to No Qualifier with No Device, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemC Mouth and Throat
OperationB Excision
Body PartS Larynx
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 in the mouth and throat remove a defined portion of tissue - a lesion, ulcer, or mass - from structures such as the lips, tongue, gums, palate, tonsils, adenoids, uvula, or pharynx, while leaving the rest of the structure in place. Surgeons perform them to obtain tissue for biopsy, remove precancerous or cancerous growths with a margin of healthy tissue, treat chronic infection or airway obstruction, or reshape structures like an elongated uvula or excess soft palate tissue contributing to snoring or sleep apnea. Because only part of the body part is taken and nothing replaces it, the structure keeps functioning afterward, sometimes with a changed contour, sensation, or speech quality at the site. Most of these procedures are outpatient. Recovery time and side effects such as swallowing discomfort, taste changes, or temporary speech alteration scale with how much tissue was removed and its location; larger oral or tongue excisions occasionally require reconstruction with a local flap or graft.

Anatomy & Axis Detail

Larynx

The larynx is the cartilaginous and muscular organ of the upper airway that houses the vocal folds and separates the pharynx from the trachea, functioning in voice production, airway protection, and respiration. Excision of laryngeal tissue is performed for lesions such as laryngeal carcinoma, papillomatosis, or other masses not amenable to lesser interventions, and the extent can range from removal of a small mucosal segment to resection of a substantial portion of the laryngeal framework short of total laryngectomy. Because the larynx is compartmentalized into supraglottic, glottic, and subglottic regions with different lymphatic drainage and functional consequences, the specific region and amount of tissue excised significantly affects both oncologic outcome and postoperative voice, swallowing, and airway function, making precise anatomic documentation essential.

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

A coder assigns an excision code when the operative note documents cutting a portion of tissue from an otherwise intact body part - a biopsy, a partial glossectomy, a wedge resection of a lip lesion, or a partial tonsillectomy. The note must specify the exact anatomic site and make clear that only part of the structure was removed, since a complete tonsillectomy or full removal of a body part meets the criteria for Resection instead. That distinction is the most common assignment error in this family - coders sometimes default to Excision for any tonsil or adenoid procedure without checking whether the note says "entire" or "total." Another frequent mistake is coding removal of debris, mucus, or a foreign object as Excision when it actually describes Extirpation, and overlooking laterality for paired structures like the gums or buccal mucosa.

Commonly Confused With

ResectionExcision is most often confused with Resection: Resection removes an entire body part, while Excision takes only a portion, so a complete tonsillectomy is Resection and a partial one is Excision.
ExtirpationIt is also confused with Extirpation, which takes out solid matter such as a calculus or foreign body rather than native tissue, and with Destruction, which eliminates abnormal tissue in place (cautery, laser ablation) without physically removing it for pathology.
ExtractionExtraction, which pulls a structure out by force rather than cutting it free, is another neighboring root operation coders should rule out when the documentation describes forceful removal.