§ 412.23 Excluded hospitals: Classifications.

Hospitals that meet the requirements for the classifications set forth in this section are not reimbursed under the prospective payment systems specified in § 412.1(a)(1):

(a) Psychiatric hospitals. A psychiatric hospital must—

(1) Meet the following requirements to be excluded from the prospective payment system as specified in § 412.1(a)(1) and to be paid under the prospective payment system as specified in § 412.1(a)(2) and in subpart N of this part;

(2) Be primarily engaged in providing, by or under the supervision of a psychiatrist, psychiatric services for the diagnosis and treatment of mentally ill persons; and

(3) Meet the conditions of participation for hospitals and special conditions of participation for psychiatric hospitals set forth in part 482 of this chapter.

(b) Rehabilitation hospitals. A rehabilitation hospital or unit must meet the requirements specified in § 412.29 of this subpart to be excluded from the prospective payment systems specified in § 412.1(a)(1) of this subpart and to be paid under the prospective payment system specified in § 412.1(a)(3) of this subpart and in subpart P of this part.

(c) [Reserved]

(d) Children's hospitals. A children's hospital must—

(1) Have a provider agreement under part 489 of this chapter to participate as a hospital; and

(2) Be engaged in furnishing services to inpatients who are predominantly individuals under the age of 18.

(e) Long-term care hospitals. A long-term care hospital must meet the requirements of paragraph (e)(1) and (e)(2) of this section and, when applicable, the additional requirement of § 412.22(e), to be excluded from the prospective payment system specified in § 412.1(a)(1) and to be paid under the prospective payment system specified in § 412.1(a)(4) and in Subpart O of this part.

(1) Provider agreements. The hospital must have a provider agreement under Part 489 of this chapter to participate as a hospital; and

(2) Average length of stay. (i) The hospital must have an average Medicare inpatient length of stay of greater than 25 days (which includes all covered and noncovered days of stay of Medicare patients) as calculated under paragraph (e)(3) of this section; or

(ii) For cost reporting periods beginning on or after August 5, 1997 and on or before December 31, 2014, a hospital that was first excluded from the prospective payment system under this section in 1986 meets the length-of-stay criterion if it has an average inpatient length of stay for all patients, including both Medicare and non-Medicare inpatients, of greater than 20 days and demonstrates that at least 80 percent of its annual Medicare inpatient discharges in the 12-month cost reporting period ending in fiscal year 1997 have a principal diagnosis that reflects a finding of neoplastic disease as defined in paragraph (f)(1)(iv) of this section.

(3) Calculation of average length of stay. (i) Subject to the provisions of paragraphs (e)(3)(ii) through (vii) of this section, the average Medicare inpatient length of stay specified under paragraph (e)(2)(i) of this section is calculated by dividing the total number of covered and noncovered days of stay of Medicare inpatients (less leave or pass days) by the number of total Medicare discharges for the hospital's most recent complete cost reporting period. Subject to the provisions of paragraphs (e)(3)(ii) through (vii) of this section, the average inpatient length of stay specified under paragraph (e)(2)(ii) of this section is calculated by dividing the total number of days for all patients, including both Medicare and non-Medicare inpatients (less leave or pass days) by the number of total discharges for the hospital's most recent complete cost reporting period.

(ii) Effective for cost reporting periods beginning on or after July 1, 2004, in calculating the hospital's average length of stay, if the days of a stay of an inpatient involves days of care furnished during two or more separate consecutive cost reporting periods, that is, an admission during one cost reporting period and a discharge during a future consecutive cost reporting period, the total number of days of the stay are considered to have occurred in the cost reporting period during which the inpatient was discharged. However, if after application of this provision, a hospital fails to meet the average length of stay specified under paragraphs (e)(2)(i) and (ii) of this section, Medicare will determine the hospital's average inpatient length of stay for cost reporting periods beginning on or after July 1, 2004, but before July 1, 2005, by dividing the applicable total days for Medicare inpatients under paragraph (e)(2)(i) of this section or the total days for all inpatients under paragraph (e)(2)(ii) of this section, during the cost reporting period when they occur, by the number of discharges occurring during the same cost reporting period.