S.D. Codified Laws § 25-6-22
An adoptee or the adoptee's legal guardian having knowledge of a hospital or clinic with medical information of an adoptee's birth parent may provide a written request to the hospital or clinic for that information. The adoptee shall send a copy of the written request to the Department of Social Services in Pierre. The adoptee or the adoptee's legal guardian shall provide to the hospital or clinic proof that the person whose medical information is being sought is a birth parent of the adoptee seeking the information. When a hospital or clinic receives a written request and the proof as required by this section, it shall release the medical information to the Department of Social Services. Upon receipt of the medical information from the hospital or clinic, the department shall forward the information to the adoptee or the adoptee's legal guardian. A hospital's or clinic's compliance with this section may not be construed as a violation of subdivision 19-19-503(b) or § 34-12-15.
SDCL 25-6-22