Full checklist › Structured → unstructured loss
Structured → unstructured loss High-risk silent loss
Discrete, coded fields (labs, meds, problems) get migrated as scanned PDFs or free text — the values look present but become unqueryable and uncomputable. This can also implicate information-blocking obligations (EHI must remain electronically accessible).
Anchored to:
• 21st Century Cures Act Final Rule (ONC) — ONC/ASTP (HHS) (Published May 1, 2020. Interoperability, information blocking, ONC certification.)
• HTI-1 Final Rule — ONC/ASTP (HHS) (Published Jan 9, 2024. Adopted USCDI v3 as certification baseline effective Jan 1, 2026.)
• USCDI — US Core Data for Interoperability — ONC/ASTP (Standardized data classes/elements; the portability baseline.)
• Information Blocking (45 CFR Part 171) — ONC/ASTP (Since Oct 6, 2022 scope is ALL EHI, not just the USCDI subset.)
General IT / operational guidance — not medical, legal, or compliance advice. This is a data-integrity validation checklist for EHR migration. Standards and versions revise; verify every citation and version against the live owner page and confirm requirements with your EHR vendor and your organization's compliance/HIM team before acting.
What to validate
- Per data-class reconciliation: confirm every USCDI element migrates as CODED, queryable data — not flattened into narrative text or a scanned image.
- Confirm the code-system URI (the `system`, not just code/display) survives — losing the binding is silent semantic loss even when the visible value looks intact.
- Spot-check that lab results, medications, and problems are still filterable/reportable in the target — run a query that depended on discreteness in the legacy system and confirm it returns the same rows.
- Confirm EHI that isn't in USCDI still migrates electronically (info-blocking scope is ALL EHI since Oct 6, 2022), not dumped to PDF.
Get the runnable validation toolkit →All 7 failure modes
Not medical advice. IT/operational guidance for EHR data-migration validation, anchored to official HL7/FHIR, ONC/ASTP, HIPAA (eCFR), and code-system sources. Last verified 2026-06-22. Verify versions and requirements with your vendor and compliance team. Some outbound links may be referral links.