Medicare AdvantageAdministrativeMedium impact
MAPAP228 - Place of Service - Update POS information for 27–32.
Blue Cross of Idaho·ID·Medical Policy
Effective date
Mar 1, 2026
We identified it
Jun 19, 2026
Summary
Blue Cross of Idaho updated Place of Service (POS) code information for codes 27-32, which were previously unassigned. This policy clarifies proper POS code usage for hospital-based services and provides a comprehensive list of all current POS codes for Medicare Advantage claims.
Action Required
By March 1, 2026: Billing team must review and verify correct Place of Service (POS) codes are being used on all Medicare Advantage claims, particularly ensuring POS 19 for off-campus outpatient hospital services, POS 22 for on-campus outpatient hospital services, and POS 21 for inpatient services. Update billing system validation rules to include newly assigned POS codes 27-32 and verify staff training on proper POS code selection per CMS guidelines.