Answer:
The correct answer is - Z71.7
Explanation:
A billable code is a code that is used to specify any medical diagnosis of an individual. These codes are enough alone to provide the details of the particular medical case found in details.
Z71.1 is a billable code which is details about the medical diagnosis of the human immunodeficiency virus counselling. It explains that individual have negative result of the HIV case.
Thus, the correct answer is - Z71.7.