### Question
How does the law define error rate?


### Answer
Under *42 U.S.C. § 1396a*, **error rate** is defined as:

> the rate of erroneous excess payments for medical assistance (as defined in section 1396b(u)(1)(D) of this title) for the period involved, except that such payments shall be limited to individuals for which eligibility determinations are made under this paragraph and except that in applying this paragraph under subchapter XXI, there shall be substituted for references to provisions of this subchapter corresponding provisions within subchapter XXI

#### Citation:
  - *42 U.S.C. § 1396a*
  - Heading: **CHAPTER 7-SOCIAL SECURITY > SUBCHAPTER XIX-GRANTS TO STATES FOR MEDICAL ASSISTANCE PROGRAMS**

