What documentation is required to establish causation in an EHR interface failure case?
No statute lists the documents. The plaintiff has to prove through evidence that the system failed, that the failure reached the clinician’s decision, and that the decision caused the harm. Causation needs medical testimony to a reasonable degree of probability (Zwiren v. Thompson, 276 Ga. 498 (2003)), and each link should have a record behind it.
Documents link by link
| Link | Documents |
|---|---|
| System failed | Interface logs, error reports, tickets, vendor notices, version release notes |
| What the screen showed | Audit trail, system screenshots from a test environment set to the same version, user testimony |
| What the clinician saw | Access logs, order entry times, deposition of the clinician |
| What should have appeared | Source system data, lab analyzer records, pharmacy cabinet records |
| Decision made | Orders, notes, medication record |
| Medical harm | Later records, imaging, lab results |
| The right data would have changed care | Expert opinion |
| Changed care would have changed outcome | Expert opinion |
Audit trail limits
HIPAA requires mechanisms to “record and examine activity” (45 C.F.R. § 164.312(b)), yet it doesn’t dictate exactly which fields are logged. An audit trail may record that a chart was opened and not which screen was viewed. A display problem may leave no log at all. That’s why a test system and a knowledgeable witness can matter as much as the logs.
Admissibility
- Business records need a custodian or a certification (O.C.G.A. §§ 24-8-803(6), 24-9-902(11)).
- Vendor emails may be hearsay unless they fit an exception, or are offered as a party’s statement against that party (§ 24-8-801(d)(2)).
- An expert can rely on otherwise inadmissible facts of a kind reasonably relied on in the field, as § 24-7-703 provides.
Expert roles
A clinical expert must meet O.C.G.A. § 24-7-702(c) for standard of care. A technical expert can explain what the system did under § 24-7-702(b). They address different questions, and one may not be able to replace the other.
Getting the data
A request under § 9-11-34 goes to the hospital. A vendor that’s a nonparty can be reached under § 9-11-34(c). Trade secret objections can be handled by a protective order under § 9-11-26(c). Data from a retired system may exist only in an archive, so a hold letter should name it.
Why the record can’t stand alone
Records show what happened in the system. A jury also needs to hear what a clinician does with that information. Without an expert tying the failure to the outcome, the claim can fail at summary judgment, however striking the logs may be.
General information about Georgia law as of November 2026. It is not legal advice and does not create an attorney-client relationship.