Better Health Enabled by Data

Harnessing the power of health data and technology to improve patient outcomes and transform the healthcare system.

Cartos

Cartos

Welcome to Cartos: ONC’s public, FHIR-enabled terminology service. Cartos streamlines and simplifies your search for up-to-date terminology connected to ONC regulations, the ONC Certification Program, and SVAP – all in one place.
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Our Mission

To create systemic improvements in health and care through access, exchange, and use of data.

ONC is at the forefront of the federal government’s efforts to make health information digitally accessible for all individuals and communities.

96%

of U.S. non-federal acute care hospitals engaged in electronically sending care records. (source)

80%

of non-federal acute care hospitals participate or plan to participate in TEFCA, according to a 2025 survey. (source)

65%

of individuals nationally were offered and accessed their online medical records or patient portal in 2024. (source)

In Focus

ONC Strategic Priorities

ONC is focused on building an affordable, patient-centered healthcare system where health data flows and innovation flourishes.

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