EVV billing by state: how a verified visit becomes a paid visit

The federal statute lists six elements: the type of service performed, the individual receiving it, the date, the location, the individual providing it, and the time the service begins and ends. States and their aggregators add their own tolerances and matching rules on top, which is where most exceptions come from.

Medicaid-funded personal care services and home health services that involve an in-home visit, under the 21st Century Cures Act. States could extend it to other home and community-based services, and some did: Kansas adds homemaker, respite and therapy services, for example. Check your state in the EVV by state table and on your state's home care billing page where there is one.

Your state's model decides it. In an open vendor state you can use the state's system, such as Therap in Kentucky or Netsmart Mobile Caregiver+ in Montana, at no cost, or your own system if it sends visits to the state aggregator at your own cost. In a provider choice state such as New York, Virginia or Washington you pick and pay for a system that meets the state rules. Maryland runs one state system that every agency uses, and in Iowa the managed care plans chose CareBridge. The EVV by state table lists the model and system for every state, with the source.

A visit record that fails one of the state's matching rules: a missing clock-in or clock-out, a GPS point outside the tolerance, a caregiver or member that does not match the schedule, a visit edited by hand past the threshold. Until the exception is cleared with a reason code the state accepts, the visit cannot be billed or is denied.

They are cleared in the EVV system first. Your coordinator corrects the visit with the reason code the state accepts and a note on what happened, and the claim for that date waits until the visit verifies. The biller ties each held claim to the visit and the exception behind it, so nothing goes out unmatched. Where the state denies claims that cannot be matched to a visit, as Delaware has since July 1, 2025, an unmatched claim is denied rather than held. Who fixes each EVV exception, and when the claim can go walks through the common reasons one by one.

Yes, within the state's rules, with a reason code and an audit trail. Some states also watch how many visits are fixed by hand. Arkansas Medicaid, for example, does not count edited or manually entered home health visits as EVV compliant, and its EVV information page says it will monitor agencies against a ten percent threshold for those visits from January 1, 2027. Editing is a correction tool, not a substitute for caregivers clocking in.

The federal requirement applies to Medicaid. Some states and plans have extended EVV-style verification to other programs, and some carriers ask for similar evidence. Where it does not apply, the agency still benefits from the same records when a payer disputes a visit.

No. A dedicated biller works in the systems you already use: the state EVV portal or aggregator, your own EVV or agency management system, and the plan portals, through logins you issue. Your state's model decides which of those logins are needed. Nothing new is installed, and no particular EVV vendor is required.