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Use of C - Codes for Adv Imaging Proc - Performed Outpatient Hospital pdf
Connecticut Medicaid (HUSKY Health)·CT · Radiology, Diagnostic Imaging·Provider Bulletin
We identified it
Jun 20, 2026
Summary
Connecticut Medicaid providers must now use specific HCPCS 'C' codes instead of CPT codes when requesting prior authorization for certain advanced imaging procedures (MRI/MRA) performed in outpatient hospital settings. This policy supersedes previous guidance from 2017.
Action Required
Immediately: Billing team must update prior authorization processes to use HCPCS 'C' codes instead of CPT codes for advanced imaging procedures in outpatient hospital settings. Update billing software to map CPT codes (74185, 77048, 77049, 71555, 73725, 72198, 72159, 73225) to their corresponding 'C' codes for Connecticut Medicaid authorization requests. Verify valid approved prior authorization using correct 'C' code is on file before performing services. Contact CHNCT at 1-800-440-5071 for prior authorization questions.