Summary & Overview
CPT 0622T: Ab interno MIGS Laser Trabecular Microperforation
CPT code 0622T defines a laser-based microinvasive glaucoma surgery (MIGS) performed via an ab interno approach using endoscopic visualization to create microperforations in the trabecular meshwork. The procedure targets enhancement of physiologic aqueous outflow to lower intraocular pressure and is relevant for glaucoma management when less invasive intraocular pressure–lowering options are indicated.
This national analysis covers reimbursement and coverage patterns for major payers, including Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of payer coverage approaches and benchmark considerations, clinical context explaining the procedure’s mechanism and typical settings of care, and guidance on how this code is positioned relative to other ophthalmic surgical services.
The publication summarizes common billing considerations, expected sites of service (hospital outpatient departments and ambulatory surgical centers), and the clinical rationale driving use of MIGS laser trabecular microperforation. Data limitations: if specific payer policy details, associated taxonomies, or ICD-10 pairings are not provided in the source, those items are noted as not available in the input. The content is intended to inform coding, billing preparation, and policy awareness for national stakeholders.
Billing Code Overview
CPT code 0622T describes a microinvasive glaucoma surgery (MIGS) procedure performed via an ab interno approach in which the provider uses a laser under endoscopic visualization to create holes in the eye’s trabecular meshwork. The intent of the procedure is to improve aqueous humor outflow through the trabecular meshwork and lower intraocular pressure for patients with glaucoma.
Service Type: Surgical ophthalmic procedure — microinvasive glaucoma surgery (laser ab interno trabecular microperforation)
Typical Site of Service: Hospital outpatient department or ambulatory surgical center (ophthalmic procedure performed in an operating/procedure room setting)
Clinical & Coding Specifications
Clinical Context
A 68-year-old phakic patient with primary open-angle glaucoma presents with progressively increasing intraocular pressure (IOP) despite maximally tolerated topical therapy and selective laser trabeculoplasty performed previously. The ophthalmologist evaluates the patient in the ambulatory surgical center (ASC) setting and documents persistently elevated IOP and visual field progression. After informed consent, the patient is taken to the ASC for microinvasive glaucoma surgery (MIGS) using endoscopic visualization. Under monitored anesthesia care, the surgeon creates multiple microperforations in the trabecular meshwork via an ab interno approach using an intraocular laser device to improve aqueous outflow and reduce IOP. The procedure is performed through a clear corneal incision with gonioscopic/endoscopic visualization; intraoperative details, number of laser applications, and any concurrent ocular procedures are recorded in the operative note. Postoperative follow-up occurs in the ophthalmology clinic the same day or within 24–72 hours, with serial IOP checks and topical postoperative medications as indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the work required is substantially greater than typically required for 0622T and documentation supports unusual effort or complexity. |
23 | Unusual anesthesia | Use when emergency, medically necessary general anesthesia is provided for a procedure normally done with local or topical anesthesia. |
50 | Bilateral procedure | Use when identical procedure 0622T is performed on both eyes during the same operative session. |
51 | Multiple procedures | Use when 0622T is reported with other distinct CPT codes performed in the same session; attach to secondary procedures as payer requires. |
52 | Reduced services | Use when 0622T is partially reduced or not completed as documented (e.g., aborted after partial treatment). |
53 | Discontinued procedure | Use when 0622T is terminated due to extenuating circumstances or patient safety concerns prior to completion. |
62 | Two surgeons | Use when two surgeons work together as primary surgeons performing distinct portions of 0622T. |
66 | Surgical team (co-surgery) | Use when a surgical team performs services requiring multiple practitioners throughout 0622T. |
78 | Unplanned return to OR | Use when the patient returns to the operating room for a related procedure during the global period of 0622T for a related complication. |
80 | Assistant surgeon | Use when an assistant surgeon performs part of 0622T as documented and allowed by payer policy. |
81 | Minimum assistant surgeon | Use when minimal assistance is provided for 0622T and documentation supports the lesser role. |
82 | Assistant surgeon (when qualified resident unavailable) | Use when a qualified resident is unavailable and an assistant surgeon is required for 0622T. |
AS | Physician assistant, nurse practitioner, or clinical nurse specialist services | Use to identify services furnished by these nonphysician practitioners when permitted by payer rules for 0622T. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| 207W00000X | Ophthalmology | Primary specialty performing MIGS procedures including 0622T. |
| 207WP0200X | Glaucoma Specialist | Subspecialist focusing on glaucoma surgical management; commonly performs 0622T. |
| 363A00000X | Anesthesiology | Provides monitored anesthesia care or general anesthesia for intraocular procedures when required. |
| 208D00000X | Optometry | May perform preoperative and postoperative evaluations under collaborative arrangements; does not bill for 0622T. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
H40.11X0 | Primary open-angle glaucoma, mild stage | Common indication for 0622T to lower intraocular pressure when medical therapy is insufficient. |
H40.11X1 | Primary open-angle glaucoma, moderate stage | Indicates progressive disease where MIGS may be considered to reduce IOP and slow progression. |
H40.11X2 | Primary open-angle glaucoma, severe stage | Advanced disease requiring surgical intervention such as ab interno trabecular procedures to control IOP. |
H40.1210 | Juvenile open-angle glaucoma, unspecified eye | Less common but relevant form of open-angle glaucoma where trabecular-targeting procedures may be used. |
H44.6 | Glaucoma, unspecified (use when laterality or staging not fully specified) | Used when documentation lacks laterality or staging detail but surgery is indicated. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
66761 | Trabeculotomy, ab interno with suture or microcatheter (e.g., GATT), one or more quadrants | Alternative or complementary ab interno trabecular surgery technique; may be performed instead of or in combination with laser trabecular microperforation approaches. |
66984 | Extracapsular cataract removal with intraocular lens implantation (one stage procedure) | Frequently performed concurrently in phakic patients to address cataract and may be combined with MIGS in the same operative session. |
92135 | Scanning computerized ophthalmic diagnostic imaging, posterior segment, with interpretation and report (e.g., OCT) | Preoperative and postoperative imaging to monitor retinal/optic nerve status and assess glaucoma progression; used in clinical workflow around 0622T. |
65820 | Peritomy with antimetabolite application (glaucoma filtering procedure) | Traditional glaucoma filtering surgery option; represents alternative procedures when MIGS is not suitable or has failed. |
76942 | Ultrasonic guidance for intraoperative localization (if applicable) | May be used when intraoperative imaging or guidance is required during complex anterior segment surgery accompanying 0622T. |
99024 | Postoperative follow-up visit, global period related (used for reporting in some settings) | Used for documenting routine postoperative global follow-up visits during the global period after 0622T where payer-specific rules permit. |