ICD-10-PCS Billable Code

0CLB8DZ

Occlusion Parotid Duct, Right to No Qualifier with Intraluminal Device, Via Natural or Artificial Opening Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemC Mouth and Throat
OperationL Occlusion
Body PartB Parotid Duct, Right
Approach8 Via Natural or Artificial Opening Endoscopic
DeviceD Intraluminal Device
QualifierZ No Qualifier

Operation Definition

Completely closing an orifice or the lumen of a tubular body part

Procedure Overview

Occlusion procedures in the mouth and throat close off an orifice or tubular structure completely, cutting off its lumen so nothing can pass through. In this body system, that most often means closing a salivary duct, sealing a fistula between the mouth or pharynx and an adjacent structure, or blocking an abnormal opening that is causing drainage, infection, or aspiration of food and saliva into the airway.

These procedures are performed when an abnormal passage is doing harm rather than serving any useful function - for example, a chronic fistula connecting the throat to the neck skin after surgery or radiation, or a duct that keeps causing painful swelling of a salivary gland. The surgeon may use sutures, clips, an occlusive device, or tissue grafts to permanently seal the opening.

For a patient, an Occlusion procedure is generally aimed at stopping an unwanted connection or leak, not at removing the structure itself, and recovery centers on the area healing closed without reopening.

Anatomy & Axis Detail

Parotid Duct, Right

Occlusion of the right parotid duct involves closing off the duct that carries saliva from the parotid gland into the mouth, most often performed to manage chronic sialorrhea (excessive drooling) in patients with neurological conditions affecting swallowing control, such as cerebral palsy or Parkinson's disease. The parotid duct, also called Stensen's duct, opens opposite the upper second molar, and ligating or otherwise blocking it redirects or reduces salivary flow from that gland while the gland itself remains in place. Because saliva production continues even after the duct is occluded, patients may experience gland swelling or discomfort until the gland adjusts, and surgeons sometimes combine this procedure with submandibular duct rerouting for a more complete reduction in drooling. Laterality is essential to document accurately, since the parotid ducts are paired structures on the right and left sides.

Approach: Via Natural or Artificial Opening Endoscopic

Via Natural or Artificial Opening Endoscopic describes instrumentation introduced through a natural orifice or a surgically created opening while using an endoscope for visualization, as in a routine colonoscopy performed through the anus. It differs from the plain Via Natural or Artificial Opening value by the added scope, and from Percutaneous Endoscopic by using an existing passage rather than a new skin puncture.

Device: Intraluminal Device

Intraluminal Device denotes a single device, such as a stent or occlusion device, positioned within the lumen of a tubular body part like a vessel, duct, or airway to maintain patency or occlude flow. It carries no drug coating or radioactivity, distinguishing it from the drug-eluting, radioactive, and bioactive intraluminal device values, and from Extraluminal Device, which sits outside rather than inside the lumen.

Coding & Documentation

Coders select Occlusion when documentation shows the intent was to completely close off a lumen or orifice, whether that's achieved surgically with sutures or ligation, or via a device delivered percutaneously or endoscopically. The device or approach used should be documented clearly, since it changes the seventh character. Look for language like "ligated," "clipped closed," "sutured shut," or "sealed" rather than words implying only partial narrowing.

A frequent assignment error is mixing up Occlusion with Restriction, which only partially narrows a lumen rather than closing it entirely - if the documentation says the passage is narrowed but still patent, Restriction is the correct root operation, not Occlusion. Another pitfall is coding Occlusion for a natural closure achieved as an incidental effect of another procedure, such as scarring after excision, when no distinct occlusion procedure was actually performed and documented.

Commonly Confused With

RestrictionOcclusion is most often confused with Restriction, and the deciding factor is whether the lumen is completely closed (Occlusion) versus narrowed but still open (Restriction).
RepairIt's also confused with Repair when a fistula is closed as an incidental part of reconstructing a defect - if the primary objective documented is repairing anatomy after trauma or a defect rather than stopping flow through a specific tract, Repair is more appropriate.
DestructionDistinguish it from Destruction as well, since Destruction eliminates tissue without necessarily achieving a complete seal of a lumen.