CPT 0660T: Intraocular Implant Drug Delivery to Anterior Segment

CPT code 0660T describes the surgical insertion of an intraocular implant that delivers a medication at a controlled rate into the anterior segment of the eye, commonly used to treat glaucoma and similar anterior‑segment conditions. As an emerging procedural code for device‑mediated drug delivery, it matters nationally for ophthalmology practice patterns, device adoption, and payer coverage policy given potential impacts on care pathways and long‑term medication management.

Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for the procedure, typical sites of service (ambulatory surgery centers and hospital outpatient departments), and the kinds of benchmarks and policy topics that influence adoption and reimbursement—such as coding application, coverage variability among major payers, and implications for procedure coding and billing workflows.

The publication also summarizes policy updates, common billing modifiers used with surgical procedures, and points of attention for coding accuracy and documentation. Data not available in the input will be identified where relevant. This national summary is intended for coding professionals, practice managers, and clinical leaders seeking a concise reference on CPT code 0660T and its role in ophthalmic procedural care.

Billing Code Overview

CPT code 0660T represents the insertion of an implanted, controlled‑release drug delivery device into the anterior segment of the eye to treat conditions such as glaucoma. The procedure involves placing an intraocular implant designed to deliver medication at a controlled rate to the front‑most region of the eye.

Service type: Intraocular implant drug delivery procedure
Typical site of service: Ambulatory surgery center or hospital outpatient department

Clinical Context

A 72-year-old patient with progressive primary open-angle glaucoma uncontrolled on maximal topical therapy presents for evaluation. After clinical assessment including slit-lamp exam, gonioscopy, intraocular pressure (IOP) measurement, and optic nerve imaging, the ophthalmologist recommends placement of an intraocular, sustained-release anterior segment drug implant to deliver medication directly to the eye over an extended period to reduce IOP and improve adherence compared with topical drops. The procedure is performed in an outpatient ambulatory surgery center or hospital outpatient department under monitored anesthesia care or local/regional anesthesia. The typical workflow includes preoperative counseling and consent, topical antisepsis and sterile draping, insertion of the implant into the anterior chamber via a small corneal or limbal incision with device delivery system, confirmation of implant position, minimal intraoperative irrigation/aspiration as needed, wound closure if required, and immediate postoperative assessment. Postoperative care includes topical antibiotics and anti-inflammatory medications, IOP checks, and follow-up visits to monitor implant position, IOP response, and for potential complications such as corneal endothelial changes, anterior chamber inflammation, hyphema, or wound leak.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased Procedural Service	Use when work required to perform the implant is substantially greater than typical.

Taxonomy Code	Specialty	Notes
207P00000X	Ophthalmology	Most common specialty performing intraocular implant procedures for glaucoma and anterior segment disease.
208600000X	Optometry	May participate in pre- and postoperative management under scope of practice; not typically the operating provider for implants.
363L00000X	Ophthalmic Plastic and Reconstructive Surgery	Performs periocular and anterior segment surgical care when complex ocular surface or structural issues are present.
207R00000X	Retina Specialist (Ophthalmology Subspecialist)	Rarely performs anterior chamber implants but may be involved if combined posterior segment procedures are required.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`H40.111`	Primary open-angle glaucoma, mild stage, right eye	Most common indication for anterior segment sustained-release IOP-lowering implant when topical therapy is insufficient.
`H40.112`	Primary open-angle glaucoma, mild stage, left eye	Same relevance for left eye procedures or bilateral planning.
`H40.121`	Primary open-angle glaucoma, moderate stage, right eye	Moderate disease severity where sustained drug delivery may be selected to improve IOP control.
`H40.122`	Primary open-angle glaucoma, moderate stage, left eye	Left eye counterpart for moderate glaucoma.
`H40.131`	Primary open-angle glaucoma, severe stage, right eye	Advanced disease where targeted intraocular delivery can assist in lowering IOP and improving adherence.
`H40.132`	Primary open-angle glaucoma, severe stage, left eye	Left-eye advanced glaucoma scenario.
`H40.8`	Other glaucoma	Includes secondary glaucomas or atypical presentations where off-label or specific implant therapy may be considered.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`0586T`	Insertion of drug-delivery implant (intravitreal)	Related modality of sustained-release ocular drug delivery; used for posterior segment intravitreal implants rather than anterior chamber.
`66989`	Insertion of intraocular lens prosthesis (secondary)	Performed when lens-related procedures are required in the same operative setting or when combined anterior segment surgery is needed.
`66984`	Cataract removal with intraocular lens implantation (complex)	Cataract surgery may be performed before, during, or after implant placement when lens status affects approach or wound construction.
`66170`	Anterior vitrectomy, irrigation and aspiration	May be performed intraoperatively if vitreous is present in the anterior chamber or to clear the visual axis related to implant placement.
`67210`	Photocoagulation, retinal	Postoperative retinal procedures are unrelated to the implant but included as an example of concurrent ophthalmic procedures that may occur in the perioperative course.

OpenPayer

Summary & Overview