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Documentation and Billing Guidelines for Services Performed by Residents in the Hospital Setting

Connecticut Medicaid (HUSKY Health)·CT·Provider Bulletin
Effective date
Jan 1, 2016
We identified it
Jun 20, 2026
Days to comply

Summary

Connecticut Medicaid (HUSKY Health) has established specific documentation and billing requirements for services performed by residents in hospital settings. Teaching physicians must use the GC modifier and provide detailed documentation showing their supervision and participation in resident-performed services.

Action Required

Action needed
Immediately: Teaching physicians must add GC modifier to all claims for services performed in part by residents. Update billing system to require GC modifier and statement 'This service has been performed in part by a resident under the direction of a teaching physician.' Providers must document their physical presence during key portions of procedures and their review/supervision of resident work. Update encounter forms and EMR templates to include required documentation elements for teaching physician participation.

Affected Billing Codes

99201
99202
99203
99211
99212
99213
99381
99382
99383
99384
99385
99386
99387
99391
99392
99393
99394
99395
99396
99397