Medical or surgical services or procedures constituting the practice of podiatry, also known as chiropody, as provided in chapter 149, and covered by the terms of any individual, group, blanket, or franchise policy providing accident or health benefits hereafter delivered or hereafter issued for delivery in Iowa and covering an Iowa risk may be performed by any practitioner, selected by the insured, licensed under chapter 149 to perform such medical or surgical services or procedures. Any provision of such policy or exclusion or limitation denying an insured the free choice of such licensed podiatric physician, also known as chiropodist, shall to the extent of the denial, be void, but such voidance shall not affect the validity of the other provisions of the policy.