Reasonable cause
Reasonable cause means an act or omission in which a covered entity or business associate knew, or by exercising reasonable diligence would have known, that the act or omission violated an administrative simplification provision, but in which the covered entity or business associate did not act with willful neglect.
Source
45 CFR § 160.401
Scoping language
As used in this subpart, the following terms have the following meanings: