### Question
How does the law define payment unit?


### Answer
Under *42 U.S.C. § 1395ww*, **payment unit** is defined as:

> a discharge, day of inpatient hospital services, or other unit of payment defined by the Secretary

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

