HCPCS codes that don't have a CPT corresponding code or are rarely used other than for Medicare are called:

Signs and symptoms of an air embolus include all of the following EXCEPT:

a. shortness of breath with clear lung sounds. b. chest pain. c. back pain. d. headache.

An aneurysm is the:

A) weakening and dilation of a vein. B) weakening and dilation of an artery. C) both A and B. D) neither A nor B.