This patient returns today to follow up on injuries when he was injured in a collision with a pedestrian while driving his motorcycle in a nontraffic accident. The external cause code for this encounter is code _____

What is NOT an error defined as administration of a dose of medication that was never ordered for that patient?

A) Unauthorized drug error B) Unordered drug error C) Wrong drug error D) Authorization error

Select the correct code for each of the diagnoses:

Bilateral compression of Eustachian tubes: A) H68.131, H68.132. B) H68.133. C) H68.139. D) H68.123.