The following questions may require the use of an ICD-9-CM code book to select the correct answer.

Surgical puncturing of a lung is coded to procedure code __________

Anaphylaxis is an extreme and life-threatening ________

a. autoimmune disease b. allergic response c. cancer d. birth defect

The paralleling technique is also called

A) the right-angle technique. B) the technique of choice. C) the long-cone technique. D) all of the above.