What is the electrical engineering safety device required for all operating room electrical outlets?

The first step in assigning an ICD-9-CM code is to a. locate the code in the Tabular List. b. match the code description in the Tabular List with the diagnosis in the patient's medical record

c. identify the first-listed diagnosis. d. list all diagnosis codes (up to four) on the insurance claim form.

Establishing drainage of a periodontal abscess may be difficult because the

A) pocket is occluded. B) pocket is too shallow. C) tooth is nonvital. D) tooth is extruded.