Serum antibodies for the diagnosis of inflammatory bowel disease: ANCA for ulcerative colitis and ASCA for Crohn's disease.

Prior Authorization Information Pre-service approval is required for all inpatient services for all products. See below for situations where prior authorization may be required or may not be required for outpatient services. Yes indicates that prior authorization is required. No indicates that prior authorization is not required. N/A indicates that this service is primarily performed in an inpatient setting. Outpatient Commercial Managed Care (HMO and POS) This is not a covered service. Commercial PPO and Indemnity This is not a covered service. Medicare HMO Blue This is not a covered service. Medicare PPO Blue This is not a covered service.