Ophthalmic Coding Specialist Practice Test

What is the role of YAG laser in the context of CPT code 66821?

1. It decreases intraocular pressure

2. It facilitates visual acuity testing

3. It is used for cutting and perforating tissues

4. It helps with cataract extraction

The correct answer is: It is used for cutting and perforating tissues

The role of the YAG laser in the context of CPT code 66821 is that it is utilized for cutting and perforating tissues during a specific procedure, which relates to the treatment of complications that can arise following cataract surgery, particularly posterior capsule opacification (PCO). CPT code 66821 specifically describes a procedure known as YAG laser capsulotomy. This procedure is performed to create an opening in the cloudy posterior capsule that can develop after cataract surgery. The YAG laser is precise, allowing for the effective removal of tissues that obstruct vision, improving visual clarity without the need for invasive surgical intervention. In contrast, the other options do not align with the specific function of the YAG laser in this situation. While it is true that controlling intraocular pressure and visual acuity testing are important aspects of eye care, they do not represent the primary role of the YAG laser in this context. Similarly, although cataract extraction involves other forms of treatment that may require various techniques and tools, the YAG laser's specific role is largely confined to the capsulotomy procedure, making it unsuitable for broader applications in cataract extraction itself.