### Question
What is the definition of subsection (d) hospital?


### Answer
The definition of **subsection (d) hospital** is as follows in *42 U.S.C. § 1395ww*:

> a hospital located in one of the fifty States or the District of Columbia other than—


(i) a psychiatric hospital (as defined in section 1395x(f) of this title),


(ii) a rehabilitation hospital (as defined by the Secretary),


(iii) a hospital whose inpatients are predominantly individuals under 18 years of age,


(iv)(I) a hospital which has an average inpatient length of stay (as determined by the Secretary) of greater than 25 days, or


(II) a hospital that first received payment under this subsection in 1986 which has an average inpatient length of stay (as determined by the Secretary) of greater than 20 days and that has 80 percent or more of its annual medicare inpatient discharges with a principal diagnosis that reflects a finding of neoplastic disease in the 12-month cost reporting period ending in fiscal year 1997, or


(v)(I) a hospital that the Secretary has classified, at any time on or before December 31, 1990,[3](#1395ww_3_target) (or, in the case of a hospital that, as of December 19, 1989, is located in a State operating a demonstration project under section 1395f(b) of this title, on or before December 31, 1991) for purposes of applying exceptions and adjustments to payment amounts under this subsection, as a hospital involved extensively in treatment for or research on cancer,


(II) a hospital that was recognized as a comprehensive cancer center or clinical cancer research center by the National Cancer Institute of the National Institutes of Health as of April 20, 1983, that is located in a State which, as of December 19, 1989, was not operating a demonstration project under section 1395f(b) of this title, that applied and was denied, on or before December 31, 1990, for classification as a hospital involved extensively in treatment for or research on cancer under this clause (as in effect on the day before August 5, 1997), that as of August 5, 1997, is licensed for less than 50 acute care beds, and that demonstrates for the 4-year period ending on December 31, 1996, that at least 50 percent of its total discharges have a principal finding of neoplastic disease, as defined in subparagraph (E), or


(III) a hospital that was recognized as a clinical cancer research center by the National Cancer Institute of the National Institutes of Health as of February 18, 1998, that has never been reimbursed for inpatient hospital services pursuant to a reimbursement system under a demonstration project under section 1395f(b) of this title, that is a freestanding facility organized primarily for treatment of and research on cancer and is not a unit of another hospital, that as of December 21, 2000, is licensed for 162 acute care beds, and that demonstrates for the 4-year period ending on June 30, 1999, that at least 50 percent of its total discharges have a principal finding of neoplastic disease, as defined in subparagraph (E)

#### Citation:
  - *42 U.S.C. § 1395ww*
  - Heading: **CHAPTER 7-SOCIAL SECURITY > SUBCHAPTER XVIII-HEALTH INSURANCE FOR AGED AND DISABLED > Part D-Miscellaneous Provisions**

