Click here to see Section 85.27 of the Iowa Code. Secion 85.27 deals with a numberr of issues, including

• Medical care
• Disputes as to the medical provider
• Protection from bill collectors when a Petition has been filed
• Payment for hours missed to go to medical care
  

The most important section, 85.27, section 4 covers medical care for injured workers;

"4.  For purposes of this section, the employer is obliged to
      furnish reasonable services and supplies to treat an injured
      employee, and has the right to choose the care.  If the employer
      chooses the care, the employer shall hold the employee harmless for
      the cost of care until the employer notifies the employee that the
      employer is no longer authorizing all or any part of the care and the
      reason for the change in authorization.  An employer is not liable
      for the cost of care that the employer arranges in response to a
      sudden emergency if the employee's condition, for which care was
      arranged, is not related to the employment.  The treatment must be
      offered promptly and be reasonably suited to treat the injury without
      undue inconvenience to the employee.  If the employee has reason to
      be dissatisfied with the care offered, the employee should
      communicate the basis of such dissatisfaction to the employer, in
      writing if requested, following which the employer and the employee
      may agree to alternate care reasonably suited to treat the injury.
      If the employer and employee cannot agree on such alternate care, the
      commissioner may, upon application and reasonable proofs of the
      necessity therefor, allow and order other care.  In an emergency, the
      employee may choose the employee's care at the employer's expense,
      provided the employer or the employer's agent cannot be reached
      immediately.  An application made under this subsection shall be
      considered an original proceeding for purposes of commencement and
      contested case proceedings under section 85.26.  The hearing shall be
      conducted pursuant to chapter 17A.  Before a hearing is scheduled,
      the parties may choose a telephone hearing or an in-person hearing.
      A request for an in-person hearing shall be approved unless the
      in-person hearing would be impractical because of the distance
      between the parties to the hearing.  The workers' compensation
      commissioner shall issue a decision within ten working days of
      receipt of an application for alternate care made pursuant to a
      telephone hearing or within fourteen working days of receipt of an
      application for alternate care made pursuant to an in-person hearing.
      The employer shall notify an injured employee of the employee's
      ability to contest the employer's choice of care pursuant to this
      subsection."