08C2XZZ
Extirpation Anterior Chamber, Right to No Qualifier with No Device, External Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 8 Eye |
| Operation | C Extirpation |
| Body Part | 2 Anterior Chamber, Right |
| Approach | X External |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Taking or cutting out solid matter from a body part
Procedure Overview
Extirpation of the eye refers to the removal of solid matter, such as a foreign body, blood clot, or abnormal deposit, that does not belong in the eye but is not itself a piece of the eye's own tissue. This differs from cutting out a portion of an organ; instead, the surgeon is clearing out material that has become lodged or has accumulated, like a metallic fragment embedded in the cornea after an injury or a thrombus within an ocular vessel.
This type of procedure is often performed urgently, particularly for foreign body removal following trauma, since retained material can scar the cornea, trigger infection, or threaten vision if left in place. Other situations include clearing calcified deposits or removing a dislocated lens fragment that has become trapped within the eye.
Anatomy & Axis Detail
Anterior Chamber, Right
The right anterior chamber is the fluid-filled space between the cornea and the iris, containing aqueous humor that maintains intraocular pressure and provides metabolic support to nearby structures. Extirpation here typically involves removing abnormal material such as blood from hyphema, inflammatory debris, retained lens fragments after cataract surgery, or infectious material in endophthalmitis, all of which can obstruct the trabecular meshwork and threaten vision if left in place. The procedure is usually performed through a small corneal or limbal incision, allowing irrigation and aspiration of the chamber's contents while protecting the corneal endothelium and iris from mechanical injury. Because the anterior chamber communicates directly with the drainage angle, clearing it of abnormal material can also be relevant to managing secondary glaucoma, and documentation should specify the nature of the material removed.
Approach: External
External approach applies to procedures performed directly on the skin or mucous membrane, or on an accessible body surface, without any instrumentation passing through a puncture or orifice. It covers things like manual reduction of a fracture or excision of a skin lesion. It differs from Via Natural or Artificial Opening in that no internal passage is entered at all, only the exposed surface.
Coding & Documentation
Coders assign Extirpation when the operative note clearly describes removal of matter that is abnormal or foreign to the eye, such as a splinter, glass fragment, blood clot, or calcific deposit, rather than excision of the eye's own tissue. Documentation should specify what was removed and from which ocular structure (cornea, anterior chamber, vitreous), since the body part value depends on the precise location. A common assignment error is applying Extirpation to a biopsy or lesion removal that is actually native tissue, which belongs under Excision or Resection instead. Another frequent mix-up occurs with intraocular foreign body cases that also require repair of surrounding tissue damage; coders sometimes overlook that a second code may be needed for the repair component performed in the same operative session.