LCSW Practicum Student

Do I bill Individual Therapy sessions for an LCSW Practicum Student under the supervising LCSW; or bill under student with modifier? The student is a current LAC and credentialed to bill under the LAC for Alchohol/Substance Abuse Treatment. However, student is completing the required practicum hours for LCSW, is seeing Clients for Individual Therapy and coding a Mental Health diagnosis.

Thank you for your help!

LCSW Practicum Student