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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
Effective date
Not stated
We identified it
Jun 20, 2026
Days to comply

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

Action needed
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.

Affected Billing Codes

74185
77048
77049
71555
73725
72198
72159
73225
C8900
C8901
C8902
C8903
C8905
C8906
C8908
C8909
C8910
C8911
C8912
C8913
C8914
C8918
C8919
C8920
C8931
C8932
C8933
C8934
C8935
C8936