Financing of health services for undocumented immigrants in Iran: common challenges and potential solutions.

The formation of a health insurance program for UIs in the current Iranian health insurance mechanism can significantly reduce management costs and, at the same time, facilitate risk pooling. Strengthening the governance of health care financing for UIs in the form of network governance may accelerate the inclusion of UIs in the UHC agenda in Iran. Specifically, it is necessary to enhance the role of developed and rich regional and international countries in financing health services for UIs.