MedicaidCoverageMedium impact
24 Hour Maximum for Outpatient Observation Stays
Maryland Medicaid·MD · Emergency Medicine, Internal Medicine, Family Medicine +2 more·Provider Transmittal
We identified it
Jun 20, 2026
Summary
Maryland Medicaid has established a 24-hour maximum limit for outpatient observation stays, requiring providers to either discharge patients or convert them to inpatient status within 24 hours. This affects billing and documentation requirements for observation services in Maryland.
Action Required
Immediately: Maryland providers must implement 24-hour monitoring for all outpatient observation stays. Clinical staff must evaluate patients within 24 hours to determine discharge or inpatient conversion. Update EMR alerts to flag observation cases approaching 24-hour limit. Billing team must verify observation billing complies with 24-hour maximum to avoid claim denials.