Which of the following is an essential skill for medical billers?

________ Gallstones can form in the gallbladder when there is a high concentration of calcium

Indicate whether the statement is true or false

The following questions may require the use of an ICD-9-CM code book to select the correct answer. The excision of a bone lesion in the muscle is coded to which of the following?

A) 77.60 B) 83.32 C) 77.80 D) 82.22