MedicaidBilling CodesMedium impact
Changes in Billing Policy for Integrated Assessment and Treatment Planning (IATP), Community Support, and Crisis Stabilization Services
Illinois Medicaid - HFS·IL · Psychiatry·Provider Notice
Effective date
Jul 1, 2022
We identified it
Jun 20, 2026
Summary
Illinois Medicaid has updated billing policies for mental health services effective July 1, 2022. Key changes include new LPHA Review reimbursement for IATP services using code H2000 with SC modifier, Crisis Stabilization services now billed in 15-minute units instead of hourly with increased rates, and elimination of HK modifier requirement for Community Support services in residential settings.
Action Required
By July 1, 2022: Mental health providers must hold FFS claims for IATP LPHA Review services (H2000 with SC modifier) until Department announces readiness to receive claims - submitting early will result in rejections. Update billing system to bill Crisis Stabilization services (T1019 HN) in 15-minute units instead of hourly. Remove HK modifier requirement for Community Support Individual services (H2015) delivered in residential settings. Check with HCI MCO plans regarding IATP LPHA Review claim submission for managed care patients.