A pediatric patient with hyperpyrexia, headache and nausea presented to the office for a sick visit. Upon examination, the pediatrician determined that the patient needed a Complete Blood Count (CBC) to check for the presence and the amount of bacteria in the blood. The first CBC came back with a highly elevated number of white blood cells indicating infection. The pediatrician then ordered a Dexamethasone antibiotic injection in the office and waited three hours and then repeated CBC to recheck the patient’s white blood cell count. The repeat CBC showed a decrease in the number of white blood cells indicating that the antibiotic injection was effective. The pediatrician then released the patient. What is the correct code for the CBC only?
