code 90853

Am trying to bill for group psychotherapy run by a psychiatrist at a facility that labels itself as an "intermediate care facility which provides psychological therapeutic services for individuals with special needs offering 24 hour nursing care". When billing to Medicare, I get a code 5 which says the the procedure code/bill type is inconsistent with the place of service. I'm not sure why this code is incorrect and does anyone know what code should be used? I have used 54 as the code for place of service when billing for individual psychiatry services and have received payment from Medicare. Thanks for any advice.