Assignment Task: A 77-year-old male with symptomatic atrioventricular blockage and a permanent pacemaker implantation developed Twiddler syndrome two weeks after implantation of the pacemaker. The pacemaker was replaced under general anesthesia, which was administered by the anesthesiologist. Assign the ICD-10-CM code(s) to diagnoses and conditions and assign the CPT anesthesia code(s) and appropriate HCPCS level II, physical status, and CPT modifier(s) for the anesthesiologist's services. Do not assign ICD-10-CM external cause codes. Want Online Help?