If a patient is admitted for radiation therapy due to lung cancer, what is the principal diagnosis assigned?
A) C34.90
B) C34.91
C) Z51.0
D) Z51.11

Question

Quizplus · Accepted Answer

The principal diagnosis in this case is Z51.0, which represents Encounter for antineoplastic radiation therapy. This code is used because the primary reason for the admission is the radiation therapy itself, not the lung cancer.

If a Patient Is Admitted for Radiation Therapy Due to Lung