For the following questions, use the ICD-9-CM code book to select the correct answer.

Biopsy of the lacrimal gland is coded to procedure code __________

Opening of the semilunar valves occurs when which of the following occurs?

a. The pressures in the arteries exceed those in the ventricles. b. The pressures in the atria exceed those in the ventricles. c. The pressures in the ventricles exceed those in the aorta and pulmonary artery. d. The pressures in the ventricles exceed those in the atria.

A pediodontist deals with the diagnosis and treatment of diseases of the supporting and surrounding structures of the tooth

a. True b. False Indicate whether the statement is true or false