(a) For outpatient hospital facility fee payments for services rendered on or after October 1, 1992, the commissioner of human services shall pay the lower of (1) submitted charge, or (2) 32 percent above the rate in effect on June 30, 1992, except for those services for which there is a federal maximum allowable payment. Effective for services rendered on or after January 1, 2000, payment rates for nonsurgical outpatient hospital facility fees and emergency room facility fees shall be increased by eight percent over the rates in effect on December 31, 1999, except for those services for which there is a federal maximum allowable payment. Services for which there is a federal maximum allowable payment shall be paid at the lower of (1) submitted charge, or (2) the federal maximum allowable payment. Total aggregate payment for outpatient hospital facility fee services shall not exceed the Medicare upper limit. If it is determined that a provision of this section conflicts with existing or future requirements of the United States government with respect to federal financial participation in medical assistance, the federal requirements prevail. The commissioner may, in the aggregate, prospectively reduce payment rates to avoid reduced federal financial participation resulting from rates that are in excess of the Medicare upper limitations.

(b) Notwithstanding paragraph (a), payment for outpatient, emergency, and ambulatory surgery hospital facility fee services for critical access hospitals designated under section 144.1483, clause (9), shall be paid on a cost-based payment system that is based on the cost-finding methods and allowable costs of the Medicare program. Effective for services provided on or after July 1, 2015, rates established for critical access hospitals under this paragraph for the applicable payment year shall be the final payment and shall not be settled to actual costs. Effective for services delivered on or after the first day of the hospital’s fiscal year ending in 2017, the rate for outpatient hospital services shall be computed using information from each hospital’s Medicare cost report as filed with Medicare for the year that is two years before the year that the rate is being computed. Rates shall be computed using information from Worksheet C series until the department finalizes the medical assistance cost reporting process for critical access hospitals. After the cost reporting process is finalized, rates shall be computed using information from Title XIX Worksheet D series. The outpatient rate shall be equal to ancillary cost plus outpatient cost, excluding costs related to rural health clinics and federally qualified health clinics, divided by ancillary charges plus outpatient charges, excluding charges related to rural health clinics and federally qualified health clinics. Effective for services delivered on or after January 1, 2024, the rates paid to critical access hospitals under this section must be adjusted to include the amount of any distributions under section 62J.692, subdivision 4, paragraph (a), that were not included in the rate adjustment described under section 256.969, subdivision 2b, paragraph (k).

(c) Effective for services provided on or after July 1, 2003, rates that are based on the Medicare outpatient prospective payment system shall be replaced by a budget neutral prospective payment system that is derived using medical assistance data. The commissioner shall provide a proposal to the 2003 legislature to define and implement this provision. When implementing prospective payment methodologies, the commissioner shall use general methods and rate calculation parameters similar to the applicable Medicare prospective payment systems for services delivered in outpatient hospital and ambulatory surgical center settings unless other payment methodologies for these services are specified in this chapter.

(d) For fee-for-service services provided on or after July 1, 2002, the total payment, before third-party liability and spenddown, made to hospitals for outpatient hospital facility services is reduced by .5 percent from the current statutory rate.

(e) In addition to the reduction in paragraph (d), the total payment for fee-for-service services provided on or after July 1, 2003, made to hospitals for outpatient hospital facility services before third-party liability and spenddown, is reduced five percent from the current statutory rates. Facilities defined under section 256.969, subdivision 16, are excluded from this paragraph.

(f) In addition to the reductions in paragraphs (d) and (e), the total payment for fee-for-service services provided on or after July 1, 2008, made to hospitals for outpatient hospital facility services before third-party liability and spenddown, is reduced three percent from the current statutory rates. Mental health services and facilities defined under section 256.969, subdivision 16, are excluded from this paragraph.