Iowa Code
Chapter 148B - OCCUPATIONAL THERAPY
Section 148B.3A - Referral.

148B.3A Referral.
Occupational therapy may be provided by an occupational therapist without referral from a physician, podiatric physician, dentist, or chiropractor, except that a hospital may require that occupational therapy provided in the hospital be performed only following prior review by and authorization of the performance of the occupational therapy by a member of the hospital medical staff.
2000 Acts, ch 1140, §34