A Patient Was Admitted into the Observation Unit of the Hospital

Multiple Choice

A patient was admitted into the observation unit of the hospital at 8 a.m. after presenting with pain in the lower back. After reviewing the test results of the lab work and discussing the ultrasound results with the radiologist, the physician diagnosed kidney stones. The physician performed a comprehensive history and comprehensive examination of the patient. The physician approved a plan of treatment and discharged the patient at 1:30 p.m. the same day. Choose the appropriate CPT code(s) :

A) 99221
B) 99235
C) 99218, 99217
D) 99236