Abnormalities in heart rhythms that are left untreated and result in death are called:

Which one of the following statements is true?

A) V codes have their own Alphabetic Index. B) V codes are located in the same manner as diagnostic codes. C) V codes are always listed as the principal diagnosis or first-listed diagnosis. D) V codes are never listed as the principal diagnosis or first-listed diagnosis.

Tooth identification is designated not only by its name and arch but also by the _________________ in which it is located.

Fill in the blank(s) with the appropriate word(s).