Tex. Health & Safety Code § 122.004

If a fund of at least $50,000 is left by will or otherwise to establish and maintain a hospital in a municipality with a population of at least 10,000, the governing body of that municipality or the commissioners court of the county in which the municipality is located may make an appropriation to the hospital, in an amount that the governing body or commissioners court considers proper, to provide hospitalization and medical and surgical services for indigent residents of the municipality or county who are sick or wounded.