Wiki group therapy 90853

You code it once for each patient who is in the group, for their documented attendance at the group on that DOS.

Billing it multiple times in one day would be appropriate if a patient was in more than one group at a time, and if their payer's authorization allowed it as part of their treatment plan.
 
Definitely check with your payer. My experience has been that 90853 can only be billed once per day for a patient.
 
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