N.M. Stat. § 27-2-46
Medically indigent patient deductible.
A medically indigent patient's deductible shall be an amount determined by the
hospital that the medically indigent patient is able to pay the hospital in monthly
installments over an eighteen-month period. That determination shall be made pursuant
to department rules and regulations and shall include, but not be limited to,
consideration of the medically indigent patient's family size, household income and
obligations.