The Primary Care Pediatric Nurse Practitioner Inserts a Wick into the Ear

The primary care pediatric nurse practitioner inserts a wick into the ear canal
of a patient who has otitis externa. When reporting this for medical billing, the nurse practitioner will identify the correct

A) CMS code for the diagnosis.
B) CPT code for the diagnosis.
C) CPT code for the wick insertion.
D) ICD code for the wick insertion.