📋 CPT 67041: Pars Plana Vitrectomy with Epiretinal Membrane Peel

Official Descriptor: Vitrectomy, mechanical, pars plana approach; with removal of preretinal cellular membrane (e.g., macular pucker). ^[4][10]

🔍 1. What is CPT Code 67041?

CPT code 67041 represents a surgical procedure to remove an epiretinal membrane (ERM)—commonly known as a macular pucker—from the surface of the retina. ^[4][10]

Procedure Goal: To improve or stabilize vision by relieving traction on the macula caused by scar tissue. The surgeon uses a mechanical vitrector to remove the vitreous humor (vitrectomy) to gain access to the retina, followed by delicate peeling of the cellular membrane off the retinal surface. ^[4][5]
Approach: The procedure is performed via a pars plana approach, meaning small incisions are made through the pars plana of the ciliary body to access the posterior segment of the eye. ^[4]
Clinical Indication: The primary indication is a symptomatic macular pucker (epiretinal membrane) causing visual distortion (metamorphopsia) or decreased visual acuity. ^[4][5][10]
Distinction: This code is specifically for removing preretinal cellular membranes. It is distinct from code 67042, which involves removal of the internal limiting membrane (ILM), typically for macular holes. ^[10]

💰 2. Reimbursement & Valuation

Work Relative Value Unit (wRVU)

The specific wRVU for 67041 is subject to annual updates by CMS based on the Medicare Physician Fee Schedule (MPFS). It is considered a complex vitreoretinal procedure with significant work RVU allocation. ^[5]

Action Item: To obtain the exact wRVU for the current calendar year, consult the CMS MPFS Lookup Tool or your specific payer contract. ^[5]

Assistant at Surgery

Assistant Surgeon (Modifier -80, -82, -AS): Vitrectomy with membrane peel is a highly specialized procedure typically performed by a single surgeon. However, in complex cases or specific patient circumstances, an assistant may be utilized.
Assistant Payable Indicator: Check the CMS MPFS Database. ^[6]
- Indicator 0: Payment restriction applies unless supporting documentation is submitted to establish medical necessity.
- Indicator 1: Statutory payment restriction applies. Assistant may not be paid (most common for this code). ^[6]
- Indicator 2: Payment restriction does not apply. Assistant may be paid.

If an assistant is used and payable, the claim is submitted separately:

Physician Assistant (Modifier -80 or -82): Reimbursed at 16% of the surgeon’s fee. ^[6]
Non-Physician Practitioner (Modifier -AS): Reimbursed at 13.6% of the surgeon’s fee (PA, APNP, CNS). ^[6]

Practice Expense (PE)

The PE covers the cost of the operating microscope, vitrectomy machine, disposable surgical packs, and specialized instruments. ^[2][8]

➕ 3. Includes & Excludes

Includes (Bundled Services)

Pars plana vitrectomy to clear the visual axis and access the retina. ^[4]
Peeling and removal of the preretinal cellular membrane (epiretinal membrane/macular pucker). ^[4][10]
Intraoperative evaluation of the retina.

Excludes

67036: Vitrectomy, mechanical, pars plana approach (without membrane removal). This is used for vitreous opacities or hemorrhage. ^[1]
67042: Vitrectomy with removal of internal limiting membrane of retina (e.g., for repair of macular hole, diabetic macular edema). ^[10]
67043: Vitrectomy with removal of subretinal membrane (e.g., choroidal neovascularization). ^[10]
67108: Repair of retinal detachment with vitrectomy (includes membrane peeling if performed for detachment). ^[5]
67113: Repair of complex retinal detachment (e.g., proliferative vitreoretinopathy). ^[5]
67208 / 67210 / 67218: Destruction of retinopathy (laser procedures without vitrectomy).

🧩 4. Code Tree & Hierarchy

Surgery of the Eye (65000-69999) → Posterior Segment Procedures (67005-67229) → Vitreous Procedures (67005-67044) ^[4] → Mechanical Vitrectomy Codes

67036: Vitrectomy, mechanical, pars plana approach (core vitrectomy only)
67041: Vitrectomy with removal of preretinal cellular membrane (macular pucker/ERM) << Current Code
67042: Vitrectomy with removal of internal limiting membrane (ILM)
67043: Vitrectomy with removal of subretinal membrane
Note: Code 67038 was deleted in 2008 and replaced by 67041, 67042, and 67043. ^[10]

↔️ 5. Common Modifiers

-22 - Increased Procedural Services: Use if the membrane is exceptionally dense, adherent, or requires significantly more effort than a standard peel. ^[5]
-50 - Bilateral Procedure: If vitrectomy with membrane peel is performed on both eyes during the same operative session (rare). ^[5]
-51 - Multiple Procedures: If performed on the same day as another distinct procedure (e.g., cataract extraction). ^[5]
-58 - Staged or Related Procedure: Use if a subsequent procedure is planned during the postoperative period.
-59 - Distinct Procedural Service: To indicate a separate site or distinct service from other procedures performed on the same day. ^[5]
-78 - Unplanned Return to the OR: If the patient requires a return to the operating room for a complication during the global period. ^[5]
-79 - Unrelated Procedure: If an unrelated procedure is performed during the postoperative period. ^[5]
-24 - Unrelated E&M: If an evaluation and management service is performed during the postoperative period that is unrelated to the original procedure. ^[5]
-25 - Significant, Separately Identifiable E&M: If an E&M service is provided on the same day as the procedure and is significant and separately identifiable. ^[5]
-LT / -RT - Left/Right Eye: Mandatory for all unilateral ocular procedures. ^[5]

🔗 7. ICD-10 Crosswalk & Medical Necessity

The diagnosis must support the medical necessity of removing an epiretinal membrane.

Primary Diagnoses (Epiretinal Membrane / Macular Pucker)

H35.371 - Puckering of macula, right eye ^[3][9]
H35.372 - Puckering of macula, left eye ^[3][9]
H35.373 - Puckering of macula, bilateral ^[3][9]
H35.379 - Puckering of macula, unspecified eye ^[3][9]
H35.36 - Epiretinal membrane with traction (if specified) ^[3]

Supporting Diagnoses (Symptoms/Findings)

H53.02 - Visual distortion (metamorphopsia)
H53.04 - Visual field defect
H54.2 - Visual impairment, moderate
H35.81 - Retinal edema (if present)

HCC Association (Hierarchical Condition Category)

ICD-10 codes for Macular Puckering (H35.37x) are generally classified under H35.3 - Degeneration of macula and posterior pole. ^[3]
These codes may contribute to risk adjustment scores if associated with significant visual impairment or blindness. ^[3]

🏥 8. MS-DRG Mapping (Inpatient)

While 67041 is typically performed in an Ambulatory Surgical Center (ASC) or Hospital Outpatient Department (HOPD), if the patient is admitted as an inpatient, it will map to a Medicare Severity-Diagnosis Related Group (MS-DRG).

Primary MS-DRG: 124 (OTHER DISORDERS OF THE EYE WITH MCC)
Secondary MS-DRG: 125 (OTHER DISORDERS OF THE EYE WITHOUT MCC)

(Note: Assignment depends on the presence of Major Complications or Comorbidities [MCC] documented in the ICD-10 codes.) ^[9]

📝 9. Coding Examples

Scenario	Patient History	Procedure Performed	Coding Rationale
Example 1	65-year-old with decreased vision and metamorphopsia in the right eye. Exam reveals epiretinal membrane with macular thickening on OCT.	Pars plana vitrectomy with peeling of epiretinal membrane.	CPT: 67041-RT DX: H35.371 (Puckering of macula, right eye). The procedure matches the diagnosis of macular pucker. ^[3][4]
Example 2	70-year-old with history of cataract surgery presents with symptomatic epiretinal membrane in the left eye causing visual distortion and edema.	Pars plana vitrectomy with membrane peel and ILM peeling for edema.	CPT: 67041-LT DX: H35.372 (Puckering of macula, left eye). Even if ILM is peeled, the primary diagnosis drives the code selection, not the ILM peel. ^[10]
Example 3	Patient with vitreous hemorrhage and no membrane peel.	Pars plana vitrectomy for clearing vitreous hemorrhage.	Do not use 67041. CPT: 67036 (Vitrectomy without membrane removal). The procedure lacks the key component of membrane peeling. ^[1]

🔬 10. Important Clinical Distinctions

Induced PVD: Inducing a posterior vitreous detachment (PVD) during surgery does not qualify the procedure for code 67041. Inducing PVD is part of a standard vitrectomy when not present beforehand. Code as 67036 if no membrane peel is performed. ^[1]
ILM vs. ERM: If the surgeon peels the internal limiting membrane (ILM) but does not peel an epiretinal membrane, use 67042, not 67041. ^[10]
Combined Procedures: If 67041 is performed in combination with cataract surgery, use modifier 51 or 59 as appropriate and check payer-specific bundling rules.

📌 11. Important Billing Notes

Diagnosis-Driven Coding: Ensure the diagnosis specifically indicates an epiretinal membrane or m[acular pucker ]. ^[3][9]
Global Period: This code has a 90-day global period. All related follow-up visits within 90 days are bundled unless a distinct, unrelated problem is addressed (modifier -24 or -79 may apply). ^[5]
Documentation: The operative report must clearly document the removal of a preretinal cellular membrane to support the use of 67041. ^[1]
Bilateral Surgery: If performed on both eyes, use modifier -50. Payers typically reimburse the second procedure at a reduced rate. ^[5]

Sources: ^{[1] AAO, Induced Posterior Vitreous Detachment (2025)} ^{[2] Cornell Law, 20 CFR § 10.807 - Payment Calculation} ^{[3] NHS England, Epiretinal Membrane ICD-10 Resolution (2018)} ^{[4] AAPC, CPT® Code 67041 - Vitreous Procedures} ^{[5] MD Clarity, CPT Code 67041: Modifiers and Reimbursement} ^{[6] Medical Billers and Coders, Assistant-at-Surgery Billing Guidelines} ^{[7] Klinisk diagnostik, ICD-10 H353F (Epiretinalt membran)} ^{[8] PocketLaw, CFR 20 § 30.707 - Payment Calculation} ^{[9] CMS, ICD-10-CM/PCS MS-DRG v41.0 Definitions Manual (H35.379)} ^{[10] AAPC, Don’t Forget the Retina Surgery Changes (2007)}

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