Summary & Overview
CPT 65785: Intracorneal Ring Segment Implantation for Keratoconus/Myopia
CPT code 65785 covers implantation of intracorneal ring segments—thin semicircular or crescent-shaped soft plastic rings placed in stromal channels to flatten and reshape the cornea. This procedure addresses keratoconus, a degenerative corneal condition that produces a conical cornea and visual distortion, and is also used for selected cases of mild to moderate myopia. Nationally, the code represents an important surgical option in corneal and refractive care as clinicians seek vision-stabilizing alternatives to corneal transplantation for progressive ectasia.
Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find benchmark context on coverage patterns and utilization for corneal implant procedures; summaries of payer policy themes and medical necessity considerations; and clinical context describing when intracorneal ring segments are typically used versus other surgical options. The publication also highlights coding and billing considerations relevant to ambulatory surgery centers and hospital outpatient settings, and identifies gaps where specific payer policy details or utilization data are not provided. This overview is intended for providers, billing staff, and policy analysts seeking a concise national briefing on the clinical role and payer landscape for CPT code 65785.
Billing Code Overview
CPT code 65785 describes the implantation of thin semicircular or crescent-shaped soft plastic rings (intracorneal ring segments) into channels created in the corneal stroma to flatten anterior corneal curvature and reshape the cornea. The procedure is performed to treat keratoconus, a progressive thinning and conical deformation of the cornea that distorts vision, and to correct mild to moderate myopia (nearsightedness).
Service type: Refractive/Corneal surgical procedure
Typical site of service: Ophthalmic ambulatory surgery center or hospital outpatient department
Clinical & Coding Specifications
Clinical Context
A 28-year-old patient with progressive keratoconus presents to an outpatient ophthalmology clinic with worsening irregular astigmatism and contact lens intolerance. Corneal topography confirms peripheral corneal steepening and thinning suitable for intracorneal ring segment implantation. The patient undergoes preoperative evaluation including visual acuity, manifest refraction, corneal topography/tomography, pachymetry, slit-lamp exam, and discussion of risks and benefits. The procedure is performed in an ambulatory surgical center under topical anesthesia with sedation as needed. The surgeon creates stromal channels using a femtosecond laser or mechanical technique, implants one or two semicircular polymethyl methacrylate (PMMA) or acrylic ring segments (CPT 65785) to flatten and regularize the anterior corneal curvature, and verifies centration and depth. Postoperative care includes topical antibiotics and corticosteroids, scheduled follow-up visits for wound and vision assessment, and refractive measurements once healing stabilizes. Typical workflow steps: pre-op testing and counseling → same-day surgical implant of intracorneal ring segments → immediate post-op evaluation in recovery → routine clinic follow-up at day 1, week 1, and month 1 with refraction and topography at 1–3 months.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Provider's usual (default) service | Use for the primary, unadjusted service line when no other modifier applies |