Products

X12's work includes an expansive standardized vocabulary allowing millions of transactions a day to seamlessly flow across networks. This work is represented in products that are updated and published in several syntaxes across different mediums on a consistent basis.

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X12’s Online Viewer

Online access to all available versions of X12 products, including the EDI Standard, Code Source Directory, Control Standards, EDI Standard Figures, Guidelines and Technical Reports.

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CORE is now part of X12

CORE Operating Rules are now formally part of X12, bringing operating rule development, certification oversight, and standards development under a single organization. By integrating widely adopted business rules with the X12 transaction standards they support, the industry gains a more unified, transparent, and coordinated approach to administrative simplification. This alignment strengthens interoperability, reduces variability across implementations, and ensures that both standards and operating rules evolve together to meet real‑world provider and health plan needs.

More information to come soon….

Licensing Program

Multi-tier licensing categories are based on how licensees benefit from X12's work, replacing traditional one-size-fits-all approaches.

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Commercial Use Partner

Embeds X12 work into a commercial product or service
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Internal Use Partner

Embeds X12 work into an internal product or service
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User

Uses software or service that has X12 work embedded
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Developer

Uses X12 work in a development environment
License Types

Featured Licensing Partners

Use X12's work to create innovative and value-added solutions for internal or commercial use.

Licensing Partners
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External Code Lists

These external code lists, referenced in other X12 work are maintained by X12 and related organizations with all published by WPC on their behalf.

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Technical Reports

X12 produces three types of documents to facilitate consistency across implementations of its work.

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Reference Model

Models business processes, applications, or data flows.
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Implementation Guide

Unique guidance to a specific business purpose.
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Clarification Paper

Describes the use, intentions, or activities related to X12 work.
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Featured Industries

X12 is honored to work with these featured industries who rely on its standards. See all industries.

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Supply Chain

The complementary use of X12 Standards and GS1 Standards enable efficiencies - across the supply chain.

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Rail

The North American railroad industry relies on X12 transactions, exchanging millions of messages each day.

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Defense

X12 transactions have enabled the management and movement of goods for the DoD consistently for decades.

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Intellectual Property (IP) Use