Summary & Overview
CPT 65800: Anterior Chamber Drainage and Aqueous Removal
CPT code 65800 represents an ophthalmic surgical procedure to drain the anterior chamber and remove aqueous humor, commonly used when the central retinal artery is occluded or when acute intraocular decompression is needed to prevent permanent vision loss. Nationally, this code is important because it captures urgent, vision-preserving interventions performed by ophthalmic surgeons in hospital operating rooms or ambulatory surgical centers. Reimbursement and policy decisions for this code affect access to timely care for vision-threatening events.
Key payers covered in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, benchmarks and utilization patterns (where available), common billing modifiers, and practical notes about typical sites of service. The publication outlines coding considerations relevant to payers and billing teams and summarizes policy updates that commonly influence coverage and prior authorization practices. Clinical context explains indications and urgency tied to central retinal artery occlusion and similar acute ocular conditions.
This summary equips billing managers, revenue cycle teams, and clinical leaders with the essential information needed to locate the code in fee schedules, align claims with clinical documentation, and anticipate payer policies that influence approval and reimbursement for urgent ophthalmic surgical care.
Billing Code Overview
CPT code 65800 describes a surgical procedure to drain fluid from the anterior chamber of the eye and to remove aqueous humor, the thin, watery fluid that fills the space between the cornea and the iris. The procedure is typically performed when the central retinal artery is blocked or when rapid decompression of intraocular pressure is required to prevent permanent vision loss.
Service type: Ophthalmic surgical procedure — anterior chamber drainage / aqueous removal
Typical site of service: Hospital operating room or ambulatory surgical center
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient presents to the emergency department with sudden, painless vision loss in the right eye that began two hours earlier. On ophthalmic exam the visual acuity is severely reduced in the affected eye, and bedside fundus exam suggests a pale retina with a cherry-red spot consistent with central retinal artery occlusion. In the acute management workflow, an ophthalmologist evaluates the patient, documents history and exam, orders urgent ocular imaging and intraocular pressure measurement, and determines that anterior chamber paracentesis is indicated to rapidly lower intraocular pressure and attempt to restore retinal perfusion. The procedure is performed in the ED or in an ophthalmology procedure room under topical anesthesia or local block; informed consent is documented. The provider uses aseptic technique, inserts a fine needle through the peripheral cornea into the anterior chamber, evacuates aqueous fluid, and documents the volume removed, patient tolerance, and post-procedure visual status. Post-procedure care includes monitoring intraocular pressure, topical antibiotic prophylaxis, and arranging urgent ophthalmology follow-up and retinal/vascular evaluation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician professional component separate from technical facility services. |