When healthcare IT leaders evaluate downtime solutions, the conversation often focuses on the visible features: the workstation interface, the wristband printing, the form library. What often gets less attention is the underlying technology that makes all of those features useful in the first place. That technology is HL7, and without it, a downtime solution is little more than a static snapshot of old data that may or may not reflect the state of your patients at the moment an outage begins.
Understanding what HL7 is, how it works, and why it matters for downtime preparedness helps healthcare organizations ask better questions when evaluating solutions and make more informed decisions about what they are actually buying.
What HL7 Is
HL7 stands for Health Level Seven International, a nonprofit organization that develops and maintains standards for the exchange, integration, sharing, and retrieval of electronic health information. The term HL7 is used both to refer to the organization and to the messaging standards it produces.
In practical terms, HL7 defines a common language that different healthcare software systems use to communicate with each other. When your EHR needs to send patient registration data to your laboratory information system, or when your pharmacy system needs to receive medication orders from your EHR, those systems use HL7 messages to transfer the information in a structured format that both systems understand.
The most widely used version in hospital environments is HL7 version 2, which has been in use for decades and remains the dominant standard for real-time clinical messaging in most US healthcare facilities. HL7 FHIR (Fast Healthcare Interoperability Resources) is a newer standard gaining adoption for patient-facing and API-based integrations, but HL7 v2 is still the backbone of most EHR-to-system communication in inpatient and acute care settings.
How HL7 Feeds Patient Data Into Downtime Workstations
The connection between HL7 and downtime preparedness is direct and critical. dbtech’s Downtime Solution uses an HL7 interface to receive a continuous stream of patient data from the EHR while the EHR is running. Specifically, the integration receives:
- ADT messages (Admit, Discharge, Transfer), which keep the patient census on downtime workstations current as patients move through the facility
- Patient demographic information, including name, date of birth, MRN, and insurance data
- Medication administration records pulled from the EHR’s pharmacy and nursing documentation
- Existing patient history and prior visit data relevant to current care episodes
- Order and result information configured to the organization’s specific downtime data requirements
Because this feed runs continuously, the patient data on dbtech’s downtime workstations is updated in real time as changes occur in the EHR. When an outage begins, the workstations are not showing data from last night’s backup. They are showing data that was current at the moment the EHR went offline, which is the data clinical staff actually need to care for the patients in front of them.
Why the Continuous Feed Is the Difference That Matters
Not all downtime solutions use a continuous HL7 feed. Some solutions sync patient data on a scheduled basis, pulling an update every few hours or once per shift. This approach creates a gap between the data on the downtime workstations and the actual state of the patients during the outage.
Consider what that gap looks like in practice:
- A patient admitted three hours before a scheduled sync has no record on the downtime workstations
- Medication changes made since the last sync are not reflected in the MAR staff are using to guide administration decisions
- Patients who were discharged since the last sync still appear on the census, creating confusion about who is actually in each bed
- New orders placed since the last sync are invisible to clinical staff working from the downtime workstation
In a high-acuity setting, a three-hour gap in patient data is not a minor inconvenience. It is a clinical risk. The continuous HL7 feed that dbtech uses eliminates this gap by ensuring that the downtime workstations reflect the EHR’s current state rather than a historical snapshot.
HL7 and the Post-Outage Recovery Process
HL7 is not just the mechanism that feeds data into the downtime workstations before and during an outage. It is also the mechanism that supports the structured return of downtime-collected data back into the EHR after recovery. dbtech’s bi-directional HL7 interface allows data captured during the outage, including patient registrations, form completions, and scanned documents, to be exported back into the EHR in a structured format rather than requiring manual re-entry.
This recovery capability is one of the most practical benefits of an HL7-based integration and one that is often underappreciated during the vendor selection process. Organizations that evaluate downtime solutions should ask not just how data gets into the system, but how it gets back out after the EHR is restored. The answer to that question has major implications for how long post-outage reconciliation takes and how much manual labor it requires.
What to Ask When Evaluating HL7 Integration in Downtime Solutions
When evaluating any downtime solution, the HL7 integration deserves specific scrutiny. Key questions to ask include:
- Is the HL7 feed continuous or scheduled, and what is the maximum lag between EHR data and workstation data?
- Which HL7 message types does the integration support, and does that include ADT, pharmacy, and order messages relevant to your workflows?
- Has the vendor implemented the integration with your specific EHR platform and version, and can they provide references from similar implementations?
- Does the integration support bi-directional data flow for post-outage recovery, or is it one-directional?
- Who manages the HL7 interface after implementation, and what happens when an EHR upgrade affects the message format?
dbtech’s team has implemented HL7 integrations with Epic, Cerner, MEDITECH, Lawson/Infor, and other major platforms. The integration is configured during implementation and maintained by dbtech’s technical team, reducing the ongoing burden on your internal IT staff. To see how the HL7 integration would work in your environment, request a demo or contact our team.