Certified Professional Coder (CPC) Practice Test

The correct CPT code for a revision mastoidectomy that results in a radical mastoidectomy is indeed 69603. This code specifically refers to a radical mastectomy, which involves removing not just the mastoid air cells, but also significant portions of the surrounding tissues when the procedure is done to improve the outcomes of previous surgeries.

In this context, a revision mastoidectomy may have been necessary due to complications or issues arising from a prior procedure, and the radical approach reflects the extent and depth of tissue removal required to address these concerns effectively. This code captures the complexity and the surgical scope involved in such a serious revision procedure.

The other codes listed do not directly correspond to the extent of the revision surgery described. The first choice, while it deals with some level of mastoid procedure, does not encompass the radical aspect. The third and fourth options focus on evaluation or management services rather than surgical interventions, therefore, they would not apply here. Understanding the specifics of the procedures represented in the codes is key to coding accurately in practice.