WEDI is a nonprofit organization focused on the use of health IT to improve healthcare information exchange enhancing quality
of care, improving efficiency and reducing costs.

"I’d like to extend my congratulations to WEDI
for their continued industry leadership and vision
in tackling healthcare’s most challenging issues."

Aneesh Chopra
The 1st Chief Technology Officer
United States

  • Guidance on Implementation of Standard Electronic Attachments for Healthcare Transactions

    by Samantha Holvey | Apr 03, 2018
    This white paper is focused on the business and operational processes of exchanging additional information (Attachments) using the HL7 standards for clinical information and the X12 transaction sets for requesting and receiving the additional information. The detailed technical requirements are not covered in this white paper as the standards development organizations have provided the technical guidance in the standards implementation documents. For definitions of abbreviations, acronyms and other terms used throughout this paper refer to Appendix A of the HL7 CDA R2 Attachment Implementation Guide: Exchange of C-CDA Based Documents, Release 1 – US Realm.

    This white paper will provide the following:
    • An overview of Attachments
    • Resources needed to have a successful implementation of Attachments
    • A review of some of the current processes for requesting and responding to the need for additional information to help understand the challenges
    • Examples of implementation approaches in the industry
    • A review of Electronic Attachment Business flows for Claims, Prior Authorizations and Notification
    • Business use cases and examples
    • A guidance on how to embed additional information within the applicable ASC X12N transaction.
    Guidance on Implementation of Standard Electronic Attachments for Healthcare Transactions White Paper

Featured Articles

ICD-10s first anniversary [The return of October 1]

Aug 17, 2016, 13:17 PM

ICD-10 is in production, but as its one-year anniversary approaches, providers should be aware of some additional items that will need to be addressed for this October.  

  1. The ICD-10 Coordination and Maintenance Committee has lifted the partial code freeze and thousands of new codes have been added for fiscal year 2017. 
  2. The Medicare grace period on code specificity for Part B post payment audits will end October 1, 2016. 
  3. Payers may begin to adjust medical policies based on the new specificity offered by ICD-10.

This means that organizations will need to take steps to incorporate the new codes into their systems and operations and continue to focus on clinical documentation improvement to enable coding at the highest level of specificity.  Many of these activities should already be familiar as annual code updates occurred under ICD-9. 

For more information, visit

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