ICD-10-PCS Billable Code

08943ZZ

Drainage Vitreous, Right to No Qualifier with No Device, Percutaneous Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System8 Eye
Operation9 Drainage
Body Part4 Vitreous, Right
Approach3 Percutaneous
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Taking or letting out fluids and/or gases from a body part

Procedure Overview

This family covers procedures that remove excess fluid, blood, pus, or other unwanted material from a space in or around the eye, without leaving behind a permanent device or creating a new pathway. Examples include draining a chalazion or eyelid abscess, aspirating fluid from the anterior chamber to relieve sudden pressure spikes, or removing blood or infected material that has accumulated within the eye following trauma or infection.

These procedures are typically performed to relieve pain, pressure, or the risk of tissue damage caused by trapped fluid, and they range from a simple in-office needle aspiration to a more involved surgical drainage performed in an operating room, depending on the location and cause of the fluid buildup.

Anatomy & Axis Detail

Vitreous, Right

The vitreous of the right eye is the clear gel filling the posterior segment between the lens and the retina, and drainage of this compartment, often performed as a vitreous tap, removes a small sample of fluid or gel for diagnostic purposes, most commonly to culture and identify the causative organism in suspected infectious endophthalmitis before or alongside intravitreal antibiotic injection. Unlike a formal vitrectomy, which mechanically removes and replaces the vitreous body, drainage in this context is a limited aspiration performed through the pars plana with a needle or small-gauge instrument. Because the vitreous cavity is adjacent to the retina, care is taken to avoid traction or inadvertent retinal touch during aspiration, and the procedure is usually done urgently given the vision-threatening nature of intraocular infection.

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

The operative note should specify the exact fluid collection location, such as the anterior chamber, vitreous, or a specific eyelid structure, and confirm that the procedure's purpose was solely to remove fluid, with no device left in place and no new permanent channel created. Coders should watch for whether a diagnostic sample was sent for culture or analysis, since that detail does not change the root operation but may prompt a qualifier for diagnostic intent. A frequent mistake is coding a therapeutic paracentesis as Drainage when the physician actually intended to relieve pressure through an implanted shunt, which belongs under Bypass instead.

Commonly Confused With

BypassDrainage is commonly confused with Bypass, since both address fluid buildup, but Drainage is a one-time removal while Bypass establishes an ongoing route for future fluid outflow.
ExtirpationIt also overlaps with Extirpation, which is used when the material removed is solid matter like a blood clot or foreign debris rather than free-flowing fluid; the distinction rests on whether the substance taken out was liquid or gas versus a solid mass embedded in tissue.