Ophthalmic Coding Specialist Practice Test

The billing procedure code for a limbal relaxing incision is correctly identified as 66999. Limbal relaxing incisions are typically used during cataract surgery to correct astigmatism. They are not specifically covered by a unique CPT code, so the correct code designates it as an unlisted procedure. In the context of ophthalmic surgery, whenever a procedure does not have a specific code, medical billing uses the unlisted code to ensure accurate representation of the services provided for appropriate reimbursement.

Other codes listed in the options pertain to specific procedures that do not apply in this situation. For instance, 66987 refers to a complex cataract surgery that involves the placement of an intraocular lens with an additional component, which is distinct from a limbal relaxing incision. Similarly, 66850 pertains to a different type of surgical procedure related to the eye, and 67001 is focused on the injection of a medication into the vitreous of the eye, which does not align with the procedure of limbal relaxing incision. Hence, selecting the unlisted code 66999 is appropriate for coding a limbal relaxing incision when no specific code exists for it.