N.M. Stat. § 4-48A-24
Revenue bonds issued by a special hospital district under the authority of the Special Hospital District Act shall not be construed or held to be general obligations of such special hospital district or the counties in which the special hospital district is located and shall be collectible only out of all or a portion of the revenues derived from the ownership and operation of a hospital facility and the revenues derived from the leasing of or other contractual arrangement for the operation of a hospital facility which revenue is so pledged, and each of the bonds of any issue or revenue bonds so issued shall recite on its face that it is payable and collectible solely from the pledged revenues hereinbefore mentioned and that the holders hereof may not look to any general or other fund for the payment of principal or interest of such obligations.
NMS § 4-48A-24