Membership

Who are X12 Members?

Representatives of these members include dedicated technologists and business process experts, meeting regularly to develop and maintain high quality standards in an open consensus environment.

Salesforce, Inc.
Illinois Medicaid (Healthcare and Family Services)
FinThrive Revenue Systems, LLC
Community Care Plan
Edifecs, Inc.
Xifin, Inc.
State Farm Insurance Companies
Elevance Health
Axway
Council for Affordable Quality Healthcare
MCG Health
Highmark, Inc.
See All Members

Membership Benefits

Join other member organizations in continuously adapting the expansive vocabulary and language used by millions of organizations while leveraging more than 40 years of cross-industry standards development knowledge.

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X12 Standards Development

Influence change and ensure your interests are represented.
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Meetings, Conferences and Educational Venues

Complimentary registration to X12 Standing Meetings.
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Standards and Publications

Complimentary access to Glass, X12's online viewer.
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Networking and Visibility

Network with decision makers and technology innovators.

Informational Forum for the 270/271, Health Care Eligibility/Benefit Inquiry and Information Response (007030X332) and the Code Value Usage in Eligibility Benefit Inquiry and Subsequent Response (007030X347)

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X12 will conduct an informational forum related to the above technical report

News + Events

Upcoming Meetings

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Summer 2026 Standing

Philadelphia, PA
Onsite: –

Meeting Details
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Fall 2026 Standing

Jacksonville, FL
Onsite: –

Meeting Details
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Winter 2027 Standing

Reno, NV
Onsite: –

Meeting Details
See All Meetings

By ChatGPT 4.0

What's the difference between XML and EDI? XML is what you use when you want to look smart. EDI is what you use when you actually want to get things done!

Important Dates

Jun
17
Summer Procedures Review Board meeting, 3-3:30 PM ET
Jun
21
2026-06-08 X12N 14-day Subcommittee Electronic MR Ballot ends (if needed)
Jun
29
ASC Ballot: Maintenance Request Package begins
Jul
03
Deadline for submitting code maintenance requests for member review of Batch 139
Jul
06
2026-07-06 X12N Subcommittee 14-day Comment Period begins (if needed)
Jul
10
Batch 139 member review begins
Jul
13
2026-07-13 X12N 14-day Subcommittee Electronic MR Ballot begins (if needed)
Jul
19
2026-07-06 X12N Subcommittee 14-day Comment Period ends (if needed)
Jul
20
2026-07-20 X12N Subcommittee 14-day Comment Period begins (if needed)
Jul
26
2026-07-13 X12N 14-day Subcommittee Electronic MR Ballot ends (if needed)
Jul
29
ASC Ballot: Maintenance Request Package ends
Jul
31
Batch 139 member review ends
Aug
02
2026-07-20 X12N Subcommittee 14-day Comment Period ends (if needed)
Aug
03
2026-08-03 X12N Subcommittee 14-day Comment Period begins (if needed)
Aug
10
August Technical Assessment Meeting 1:30-3:30 PM ET Monday & Tuesday - 1:30 - 2:30 PM ET Wednesday   2026-08-10 X12N 14-day Subcommittee Electronic MR Ballot begins (if needed)
See All Important Dates

2019 Award Recipients

X12 is proud and honored to recognize outstanding participants.

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Stacey Barber and Mary Kay McDaniel

Lifetime Achievement Award
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Joel Prater

Bass Achievement Award

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