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The HL7 Survival Guide – 2 Year Anniversary

By margo.ellis@caristix.com | Published: September 24th, 2014

It’s been 2 years this fall that we started publishing the HL7 Survival Guide chapter by chapter. It’s proven to be our most popular download and has been called “truly awesome reading for a true practitioner”.

The HL7 Survival Guide helps you get in control of the entire interface lifecycle. Move beyond the basics with a go-to guide full of real-world practice advice on effective interfacing. The HL7 Survival Guide helps you cut non-value-added tasks and focus on the essential.

Take this [...]

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All-in-One HL7 Survival Guide

By sovita.chander@caristix.com | Published: July 25th, 2013

Our readers have been asking, and now it’s here: the complete HL7 Survival Guide, now available as a single PDF download.

Download your copy now.

The HL7 Survival Guide helps you get in control of the entire interface lifecycle. Move beyond the basics with a go-to guide full of real-world practice advice on effective interfacing. The HL7 Survival Guide helps you cut non-value-added tasks and focus on the essential.

Inside the HL7 Survival Guide:

Introduction
Ch.1. How to Integrate and Exchange Healthcare Date
Ch. 2. Pros [...]

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HL7 Survival Guide: Chapter 13 Resources and Contributors

By sovita.chander@caristix.com | Published: June 18th, 2013

Resources

For vendor performance rankings, see the KLAS Research website.

For a current view of the HL7 interface market within healthcare, see the 2012 HL7 Interface Technology Survey Results published by Core Health Technologies.

For more on de-identification, check out these blog posts: De-Identifying Patient Data Part 1, De-Identifying Patient Data Part 2.

Frozen Interface Syndrome: Wes Rishel of Gartner weighs in on this interoperability issue

How to automate your tests.

How to figure out if you suffer from Interface Black Box Syndrome.

Messaging Workbench available via [...]

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HL7 Survival Guide: Chapter 12, Definitions

By sovita.chander@caristix.com | Published: June 18th, 2013

Anonymization

This is a type of de-identification where all sensitive data is removed.  More details and a definition of anonymization are available in a previous blog post.

Code set

Also referred to as HL7 tables, vocabulary or code table. It is a list of codes and their meanings used to codify information included in HL7 messages. Codes could be defined by the HL7 standard itself or information systems.

For instance, here is the list of suggested values for patient gender as proposed by HL7 [...]

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HL7 Survival Guide: Chapter 11 Maintenance, Troubleshooting, Monitoring

By sovita.chander@caristix.com | Published: May 30th, 2013

Now we’re coming full circle. Throughout Chapters 6 through 10, we talked about creating interfacing artifacts, assets, and documentation: profiles, gap analyses, test plans, test messages, test systems, and workflow maps. In this chapter, we explain how you can get maximum value from all the work you put into creating all of those. 

Why Document?

By documenting your profiles and specs, you can much more easily troubleshoot issues and tweak configuration once your interface is live. Plus, if you created electronic – [...]

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HL7 Survival Guide: Chapter 10 Process and Workflow

By sovita.chander@caristix.com | Published: May 13th, 2013

In the last chapter, we explained what to aim for in test messages and message samples. Next you need to map out your processes and workflows to understand how your interface can support them.

For example, your clinical workflow may look like this: a patient is admitted in the Emergency Department via the departmental ADT system. The doctor on duty orders lab work and the patient is admitted to the hospital. The admission is now recorded as an in-patient in the [...]

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HL7 Survival Guide: Chapter 9 Message Samples and Test Messages

By sovita.chander@caristix.com | Published: March 26th, 2013

In the previous chapter, we covered what you need to know when testing your interface. While the right test tool is helpful, you need to feed it the right message samples and test messages. After all, messages impact the entire interfacing lifecycle.

So what makes messages “right”? Namely, you need message samples and test messages that reflect your environment: your ADT message flow, your specific lab codes, and your case mix – whatever information your interface is intended to share.

Just as [...]

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HL7 Survival Guide — Chapter 8: Test Scenarios and Test Systems

By jeanluc.morin@caristix.com | Published: March 5th, 2013

The HL7 interface lifecycle. You need to test during Configuration, Validation, and Maintenance.

In the last two chapters, we covered some of the requirements-related artifacts you need. Now it’s time for testing, which you conduct at different phases in the interface lifecycle: during configuration and development; during the formal validation phase; and during maintenance.

“Why test?,” you ask. When you start to develop and iterate on your interface, you run tests to avoid introducing new problems – you check and test [...]

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HL7 Survival Guide — Chapter 7: Gap Analysis

By jeanluc.morin@caristix.com | Published: February 21st, 2013

This chapter helps you set up a crucial HL7 requirements document: the gap analysis. Once you have profiles for your source and destination systems, you need to capture a list of all the gaps existing between the two systems in a requirements document. You unearth this list by conducting a gap analysis, which will tell you what’s missing and what needs to be bridged by the interface. In essence, a gap analysis captures the differences in messaging between the new [...]

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HL7 Survival Guide — Chapter 6, Interfacing Artifacts: HL7 Conformance Profiles and Interface Specifications

By sovita.chander@caristix.com | Published: February 6th, 2013

The first five chapters of this Survival Guide have helped you think strategically about your interfacing project. Now we’re going to dive into the nitty-gritty of what you need in an interface specification and/or HL7 profile (note: we use the terms specification, conformance profile, and profile interchangeably in this chapter).

An HL7 interface specification should list:

1. Interface name

How do you refer to your interface in your integration environment? Some organizations manage thousands of interfaces. If you’ve got 10 or 20 interfaces, [...]

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