S.D. Codified Laws § 44-12-1
Subject to § 44-12-3.1, a person, association, limited liability company, corporation, county, or other institution, including a municipal corporation, maintaining a hospital licensed under the laws of this state that furnishes hospitalization or other service of any other nature in the treatment of or in connection with an injury not covered under title 62, if the injured party asserts or maintains a claim against another for damages on account of the injury, has a lien upon that part going or belonging to the injured party of any recovery or sum had or collected or to be collected by the injured party, or by the injured party's heirs or personal representative in case of the injured party's death, whether by judgment or by settlement or compromise to the amount of the reasonable and necessary charges of the hospital for the treatment, care, and maintenance of the injured party in the hospital up to the date of payment of the damages.
SDCL 44-12-1