HIMSS Word of The Day #530: OON (Out of Network)
Out of network describes clinicians and facilities that sit outside a given health plan’s contracted network. This post explains the HIMSS Dictionary definition and why network status data matters in registration and billing, then reviews four studies: radiologists’ out-of-network claims falling from 12.6 percent to 1.1 percent, two analyses of state surprise billing laws, and a study of how balance billing bans changed emergency department use.