Entries that require a seventh character extension are referred to as subcategories because it cannot be called a code until the extension is added

Indicative or facing leads for the anterior myocardial infarction are:

A) V3 and V4 B) V5 and V6 C) II, III, and aVF D) I and aVL

"Cold Chain" refers to a system for distribution of vaccines that maintains the vaccine's immunogenic properties from manufacturer's shipment to time of administration.

a. true b. false