Extracapsular cataract removal with intraocular lens insertion sounds complex, doesn’t it? That is what CPT code 66984 represents in medical billing. But the question is, in what situations can this code be applied, and what guidelines should be followed when billing it?
If you’re pondering similar concerns, you’ll find all relevant information here. Let us begin by understanding what this CPT code means.
CPT Code 66984 – Description
Extracapsular cataract removal, commonly called ECCE in medical terms, involves the removal of a cloudy lens via incisions made during surgery and replacing it with an artificial intraocular lens (IOL).
The ECCE can be done with two methods. One, being manual (aspiration), where an ophthalmologist makes an incision of up to 12mm in the cornea and removes the hard central nucleus of the lens while leaving the posterior capsule for IOL support intact.
In the other option, it can be done using modern equipment and techniques, like ultrasonic waves during phacoemulsification.
How Helpful is Manual Extracapsular Cataract Removal for Patients?
One of the reasons why so many patients opt for this surgical procedure is its high success rate. Statistics reveal that nearly 97% experience positive results within a few days of the procedure.
This procedure is primarily performed when the cataract becomes too dense. In other words, it becomes hard and cannot be broken down using phacoemulsification. Once the manual ECCE is done successfully, the ophthalmologist can bill patients using CPT code 66984.
However, a downside of the cataract surgery is its slower recovery as sutures are required to seal the incision.
Appropriate Use Cases for CPT Code 66984
Understanding CPT code 66984 might be challenging on its own. Therefore, let’s discuss a couple of practical use cases in which this CPT code will be applicable.
Age-Related Cataract Removal
Cleveland Clinic statistics claim that 17% of the world population has cataracts, leading to vision problems. Most of these people have this complication because of their old age.
Imagine a 75-year-old woman who arrives at the clinic complaining of blurry vision in her right eye and the inability to read books and her favorite magazines.
The physician examines the patient and diagnoses cataract. He decides to remove the cataract using phacoemulsification. Ultrasonic waves break down the cloudy lens, and the debris is suctioned out. In the same operative session, an artificial lens is inserted into the patient’s eye to restore vision.
Therefore, the team bills the payer with CPT code 66984 and modifier RT to bill cataract removal and IOL insertion.
Diabetes-Induced Cataract Removal
The American Diabetes Association claims people with high blood sugar are at a higher risk of cataract development. Consider a 44-year-old male with diabetes and a family and personal history of obesity and high blood sugar.
He arrives at the ophthalmology clinic because of clouded vision in his left eye and high sensitivity to glare. The physician performs a comprehensive eye examination, including the slit-lamp exam and visual acuity test, to view the lens and assess the patient’s vision. He diagnoses cataract in the patient’s left eye.
Further tests show that the cloudy lens has become hard, and extraction will be unlikely via phacoemulsification. Therefore, the ophthalmologist performs a manual ECCE (cataract surgery) and replaces the damaged lens with an artificial one in the same operative session.
For insurance billing and reimbursement, he files a service claim using CPT code 66984 and appending modifier LT to it.
Modifiers to Append with CPT Code 66984
The following are some of the modifiers ophthalmologists can use with CPT code 66984:
Modifier LT
If the ophthalmologist performs a cataract removal and artificial lens insertion in the patient’s left eye, the modifier LT should be used.
Modifier RT
Conversely, if the procedures are performed on the right eye, then the modifier RT should be used.
Note that both modifiers RT and LT are informational modifiers only and do not have an effect on the final reimbursement rate.
Modifier 53
In case the surgeon has to stop the procedure for ECCE because of potential risks, like the patient developing a vitreous bulge, the modifier 53 should be used to indicate that the procedure was discontinued (after anesthesia administration) due to extenuating circumstances.
Generally, the process is safe, but some patients may experience inflammation or infection. In more extreme cases, retinal detachment may also occur.
Reimbursement Guidelines for CPT Code 66984
The following are some of the reimbursement guidelines that will help you avoid denials against your CPT 66984 claims.
Use the Right Code for ECCE
A common mistake is using CPT code 66984 for the wrong procedure. An incorrect CPT code leads to denial, so ensure being as detailed as possible.
Remember, this CPT code can only be used when a cataract removal procedure (Stage-1 Only) is performed in the same session as an IOL insertion.
Provide All Necessary Documents
A primary reason why many medical insurance claims involving this CPT code get denied is improper documentation. Missing documents mean a weak insurance claim, leading to instant denial.
Therefore, here is a list of documents according to CGS Medicare to have before filing a claim:
- Name and details of the beneficiary
- Patient’s complete medical history
- Patient consent form
- Patient intake form
- List of tests/ procedures along with their results
- Operative notes and details of the devices and techniques used
- Pre-operative evaluation documents and eye exam
- Dated office visit record with the physician’s signature. Note: The claimant will require an attestation if the record is unsigned.
- Post-surgery treatment plan and progress notes.
Quick Insight: Do not bill the two procedures (extracapsular cataract removal and IOL insertion) separately, as it will result in a claim denial.
Prove Medical Necessity
Any medical claim can be rejected if it does not support medical necessity. Therefore, add the relevant ICD-10 codes to explain the symptoms and diagnosis. Also, the medical documentation and history should reflect the need for the procedure for the end goal, i.e., for the patient’s vision restoration.
Adding details regarding the patient’s everyday challenges and the condition’s impact on the quality of life is an effective method. Moreover, add details regarding the patient’s highest attainable vision with glasses.
Append the Right Modifier (When Needed)
Modifiers will play a significant role in the billing process, so it is crucial to use the correct ones when required. Choose between LT and RT based on the procedure laterality. Similarly, choose the other modifiers based on the patient’s specific situation.
Summing Up CPT Code 66984
CPT code 66984 remains crucial for cataract cases. We’ve covered all major information regarding this CPT code, its modifiers, use cases, and billing guidelines.
However, if you still have medical billing complications, our ophthalmology billing services are an effective solution.
