United States Core Data for Interoperability (USCDI)
The United States Core Data for Interoperability (USCDI) is a standardized set of health data classes and constituent data elements for nationwide, interoperable health information exchange. Review the USCDI Fact Sheet to learn more.
A USCDI Data Class is an aggregation of Data Elements by a common theme or use case.
A USCDI Data Element is a piece of data defined in USCDI for access, exchange or use of electronic health information.
USCDI ONC New Data Element & Class (ONDEC) Submission System
USCDI V1
Please reference the USCDI version 1 document to the left for applicable standards versions associated with USCDI v1.
Harmful or undesired physiological responses associated with exposure to a substance.
Health professional’s conclusions and working assumptions that will guide treatment of the patient.
Information about a person who participates or is expected to participate in the care of a patient.
Narrative patient data relevant to the context identified by note types.
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- Usage note: Clinical Notes data elements are content exchange standard agnostic. They should not be interpreted or associated with the structured document templates that may share the same name.
Desired state to be achieved by a patient.
Health related matter that is of interest, importance, or worry to someone who may be the patient, patient’s family or patient’s health care provider.
Record of vaccine administration.
Analysis of clinical specimens to obtain information about the health of a patient.
Pharmacologic agents used in the diagnosis, cure, mitigation, treatment, or prevention of disease.
Data used to categorize individuals for identification, records matching, and other purposes.
Activity performed for or on a patient as part of the provision of care.
The metadata, or extra information about data, regarding who created the data and when it was created.
Representing a patient’s smoking behavior.
Unique identifier(s) for a patient's implantable device(s).
Physiologic measurements of a patient that indicate the status of the body’s life sustaining functions.
USCDI V2
The USCDI v2 contains data classes and elements from USCDI v1 and new data classes and elements submitted through the ONDEC system. Please reference the USCDI Version 2 document to the left for applicable vocabulary standards versions associated with USCDI v2 and to the ONC Standards Bulletin 21-3 for more information about the process to develop USCDI v2 and future versions.
Harmful or undesired physiological responses associated with exposure to a substance.
Health professional’s conclusions and working assumptions that will guide treatment of the patient.
Information about a person who participates or is expected to participate in the care of a patient.
Narrative patient data relevant to the context identified by note types.
-
- Usage note: Clinical Notes data elements are content exchange standard agnostic. They should not be interpreted or associated with the structured document templates that may share the same name.
Non-imaging and non-laboratory tests performed that result in structured or unstructured findings specific to the patient to facilitate the diagnosis and management of conditions.
Tests that result in visual images requiring interpretation by a credentialed professional.
Information related to interactions between healthcare providers and a patient.
Desired state to be achieved by a patient.
Health related matter that is of interest, importance, or worry to someone who may be the patient, patient’s family or patient’s health care provider.
Record of vaccine administration.
Analysis of clinical specimens to obtain information about the health of a patient.
Pharmacologic agents used in the diagnosis, cure, mitigation, treatment, or prevention of disease.
Data used to categorize individuals for identification, records matching, and other purposes.
Condition, diagnosis, or reason for seeking medical attention.
Activity performed for or on a patient as part of the provision of care.
The metadata, or extra information about data, regarding who created the data and when it was created.
Representing a patient’s smoking behavior.
Unique identifier(s) for a patient's implantable device(s).
Physiologic measurements of a patient that indicate the status of the body’s life sustaining functions.
USCDI V3
USCDI v3 contains data classes and elements from USCDI v2 and new data classes and elements submitted through the ONDEC system. Please reference the USCDI Version 3 document to the left for applicable vocabulary standards versions associated with USCDI v3 and to the ONC Standards Bulletin 22-2 for more information about the process to develop USCDI v3 and future versions.
Harmful or undesired physiological responses associated with exposure to a substance.
Health professional’s conclusions and working assumptions that will guide treatment of the patient.
Information about a person who participates or is expected to participate in the care of a patient.
Narrative patient data relevant to the context identified by note types.
-
- Usage note: Clinical Notes data elements are content exchange standard agnostic. They should not be interpreted or associated with the structured document templates that may share the same name.
Non-imaging and non-laboratory tests performed that result in structured or unstructured findings specific to the patient to facilitate the diagnosis and management of conditions.
Tests that result in visual images requiring interpretation by a credentialed professional.
Information related to interactions between healthcare providers and a patient.
Desired state to be achieved by a patient.
Data related to an individual’s insurance coverage for health care.
Assessments of a health-related matter of interest, importance, or worry to a patient, patient’s family, or patient’s healthcare provider that could identify a need, problem, or condition.
Record of vaccine administration.
Analysis of clinical specimens to obtain information about the health of a patient.
Pharmacologic agents used in the diagnosis, cure, mitigation, treatment, or prevention of disease.
Data used to categorize individuals for identification, records matching, and other purposes.
Condition, diagnosis, or reason for seeking medical attention.
Activity performed for or on a patient as part of the provision of care.
The metadata, or extra information about data, regarding who created the data and when it was created.
Unique identifier(s) for a patient's implantable device(s).
Physiologic measurements of a patient that indicate the status of the body’s life sustaining functions.
USCDI V4
USCDI v4 added 20 data elements and one data class to USCDI v3. Please reference the USCDI v4 standard document and the ONC Standards Bulletin 23-2 for details. To review the prioritization criteria ONC used to select the USCDI v4 data elements, refer to the ONC Standards Bulletin 22-2.
Harmful or undesired physiological responses associated with exposure to a substance.
Information about a person who participates or is expected to participate in the care of a patient.
Narrative patient data relevant to the context identified by note types.
-
- Usage note: Clinical Notes data elements are content exchange standard agnostic. They should not be interpreted or associated with the structured document templates that may share the same name.
Non-imaging and non-laboratory tests performed that result in structured or unstructured findings specific to the patient to facilitate the diagnosis and management of conditions.
Tests that result in visual images requiring interpretation by a credentialed professional.
Information related to interactions between healthcare providers and a patient.
Physical place of available services or resources.
Desired state to be achieved by a person or a person’s elections to guide care.
Data related to an individual’s insurance coverage for health care.
Assessments of a health-related matter of interest, importance, or worry to a patient, patient’s family, or patient’s healthcare provider that could identify a need, problem, or condition.
Record of vaccine administration.
Analysis of clinical specimens to obtain information about the health of a patient.
An instrument, machine, appliance, implant, software or other article intended to be used for a medical purpose.
Pharmacologic agents used in the diagnosis, cure, mitigation, treatment, or prevention of disease.
Data used to categorize individuals for identification, records matching, and other purposes.
Conclusions and working assumptions that will guide treatment of the patient, and recommendations for future treatment.
Condition, diagnosis, or reason for seeking medical attention.
Activity performed for or on a patient as part of the provision of care.
The metadata, or extra information about data, regarding who created the data and when it was created.
Physiologic measurements of a patient that indicate the status of the body’s life sustaining functions.
USCDI V5
USCDI v5 was published on July 16, 2024, and includes 16 new data elements and two new data classes. Please read the USCDI v5 standard document and the ONC Standards Bulletin 24-2 for details.
Harmful or undesired physiological responses associated with exposure to a substance.
Information about a person who participates or is expected to participate in the care of a patient.
Narrative patient data relevant to the context identified by note types.
-
- Usage note: Clinical Notes data elements are content exchange standard agnostic. They should not be interpreted or associated with the structured document templates that may share the same name.
Non-imaging and non-laboratory tests performed that result in structured or unstructured findings specific to the patient to facilitate the diagnosis and management of conditions.
Tests that result in visual images requiring interpretation by a credentialed professional.
Information related to interactions between healthcare providers and a patient.
Physical place of available services or resources.
Desired state to be achieved by a person or a person’s elections to guide care.
Data related to an individual’s insurance coverage for health care.
Assessments of a health-related matter of interest, importance, or worry to a patient, patient’s family, or patient’s healthcare provider that could identify a need, problem, or condition.
Record of vaccine administration.
Analysis of clinical specimens to obtain information about the health of a patient.
An instrument, machine, appliance, implant, software or other article intended to be used for a medical purpose.
Pharmacologic agents used in the diagnosis, cure, mitigation, treatment, or prevention of disease.
Findings or other clinical data collected about a patient during care.
Provider-authored request for the delivery of patient care services.
Data used to categorize individuals for identification, records matching, and other purposes.
Conclusions and working assumptions that will guide treatment of the patient, and recommendations for future treatment.
Condition, diagnosis, or reason for seeking medical attention.
Activity performed for or on a patient as part of the provision of care.
The metadata, or extra information about data, regarding who created the data and when it was created.
Physiologic measurements of a patient that indicate the status of the body’s life sustaining functions.
Draft USCDI V6
ASTP/ONC published Draft USCDI v6 on January 14, 2025, and proposes to add 6 new data elements. Please read the Draft USCDI v6 standard document and the ASTP Standards Bulletin 25-1 for details. ASTP/ONC is accepting comments here through May 12, 2025, at 11:59 PM ET.
Harmful or undesired physiological responses associated with exposure to a substance.
Information about a person who participates or is expected to participate in the care of a patient.
Narrative patient data relevant to the context identified by note types.
-
- Usage note: Clinical Notes data elements are content exchange standard agnostic. They should not be interpreted or associated with the structured document templates that may share the same name.
Non-imaging and non-laboratory tests performed that result in structured or unstructured findings specific to the patient to facilitate the diagnosis and management of conditions.
Tests that result in visual images requiring interpretation by a credentialed professional.
Information related to interactions between healthcare providers and a patient.
Physical place of available services or resources.
Desired state to be achieved by a person or a person’s elections to guide care.
Data related to an individual’s insurance coverage for health care.
Assessments of a health-related matter of interest, importance, or worry to a patient, patient’s family, or patient’s healthcare provider that could identify a need, problem, or condition.
Record of vaccine administration.
Analysis of clinical specimens to obtain information about the health of a patient.
An instrument, machine, appliance, implant, software or other article intended to be used for a medical purpose.
Pharmacologic agents used in the diagnosis, cure, mitigation, treatment, or prevention of disease.
Findings or other clinical data collected about a patient during care.
Provider-authored request for the delivery of patient care services.
Data used to categorize individuals for identification, records matching, and other purposes.
Conclusions and working assumptions that will guide treatment of the patient, and recommendations for future treatment.
Condition, diagnosis, or reason for seeking medical attention.
Activity performed for or on a patient as part of the provision of care.
The metadata, or extra information about data, regarding who created the data and when it was created.
Physiologic measurements of a patient that indicate the status of the body’s life sustaining functions.
- Represented by a terminology standard or SDO-balloted technical specification or implementation guide.
- Data element is captured, stored, or accessed in multiple production EHRs or other HIT modules from more than one developer.
- Data element is electronically exchanged between more than two production EHRs or other HIT modules of different developers using available interoperability standards.
- Use cases apply to most care settings or specialties.
Level 2
Harmful or undesired physiological responses associated with exposure to a substance.
Material substance originating from a biological entity intended to be transplanted or infused into another (possibly the same) biological entity.
Tests that result in visual images requiring interpretation by a credentialed professional.
Physical place of available services or resources.
Data related to an individual’s insurance coverage for health care.
Record of vaccine administration.
An instrument, machine, appliance, implant, software or other article intended to be used for a medical purpose.
Pharmacologic agents used in the diagnosis, cure, mitigation, treatment, or prevention of disease.
Provider-authored request for the delivery of patient care services.
Data used to categorize individuals for identification, records matching, and other purposes.
Conclusions and working assumptions that will guide treatment of the patient, and recommendations for future treatment.
Condition, diagnosis, or reason for seeking medical attention.
Activity performed for or on a patient as part of the provision of care.
Physiologic measurements of a patient that indicate the status of the body’s life sustaining functions.
- Represented by a terminology standard or SDO-balloted technical specification or implementation guide.
- Data element is captured, stored, or accessed in at least one production EHR or HIT module.
- Data element is electronically exchanged between two production EHRs or other HIT modules using available interoperability standards.
- Use cases apply to several care settings or specialties.
Level 1
Material substance originating from a biological entity intended to be transplanted or infused into another (possibly the same) biological entity.
Narrative patient data relevant to the context identified by note types.
-
- Usage note: Clinical Notes data elements are content exchange standard agnostic. They should not be interpreted or associated with the structured document templates that may share the same name.
Physical place of available services or resources.
Assessments of a health-related matter of interest, importance, or worry to a patient, patient’s family, or patient’s healthcare provider that could identify a need, problem, or condition.
Analysis of clinical specimens to obtain information about the health of a patient.
Pharmacologic agents used in the diagnosis, cure, mitigation, treatment, or prevention of disease.
Data used to categorize individuals for identification, records matching, and other purposes.
The metadata, or extra information about data, regarding who created the data and when it was created.
Physiologic measurements of a patient that indicate the status of the body’s life sustaining functions.
- Not represented by a terminology standard or SDO-balloted technical specification or implementation guide.
- Data element is captured, stored, or accessed in limited settings such as a pilot or proof of concept demonstration.
- Data element is electronically exchanged in limited environments, such as connectathons or pilots.
- Use cases apply to a limited number of care settings or specialties, or data element represents a specialization of other, more general data elements.
Level 0
Harmful or undesired physiological responses associated with exposure to a substance.
Material substance originating from a biological entity intended to be transplanted or infused into another (possibly the same) biological entity.
Information about a person who participates or is expected to participate in the care of a patient.
Narrative patient data relevant to the context identified by note types.
-
- Usage note: Clinical Notes data elements are content exchange standard agnostic. They should not be interpreted or associated with the structured document templates that may share the same name.
Non-imaging and non-laboratory tests performed that result in structured or unstructured findings specific to the patient to facilitate the diagnosis and management of conditions.
Tests that result in visual images requiring interpretation by a credentialed professional.
Information related to interactions between healthcare providers and a patient.
Health data as reflected in a patient's Explanation of Benefits (EOB) statements, typically derived from claims and other administrative data.
Desired state to be achieved by a patient.
Desired state to be achieved by a person or a person’s elections to guide care.
Data related to an individual’s insurance coverage for health care.
Assessments of a health-related matter of interest, importance, or worry to a patient, patient’s family, or patient’s healthcare provider that could identify a need, problem, or condition.
Record of vaccine administration.
Analysis of clinical specimens to obtain information about the health of a patient.
An instrument, machine, appliance, implant, software or other article intended to be used for a medical purpose.
Pharmacologic agents used in the diagnosis, cure, mitigation, treatment, or prevention of disease.
Findings or other clinical data collected about a patient during care.
Provider-authored request for the delivery of patient care services.
Data used to categorize individuals for identification, records matching, and other purposes.
Conclusions and working assumptions that will guide treatment of the patient, and recommendations for future treatment.
Condition, diagnosis, or reason for seeking medical attention.
Activity performed for or on a patient as part of the provision of care.
The metadata, or extra information about data, regarding who created the data and when it was created.
Physiologic measurements of a patient that indicate the status of the body’s life sustaining functions.
The USCDI ONC New Data Element and Class (ONDEC) Submission System supports a predictable, transparent, and collaborative process, allowing health IT stakeholders to submit new data elements and classes for future versions of USCDI. Click here for more information and to submit new data elements.
The USCDI standard will follow the Standards Version Advancement Process described in the Cures rule to allow health IT developers to update their systems to newer version of USCDI and provide these updates to their customers.
Comment
Submitted by yale-coredQMRoadmap on
CMS-CCSQ Priorities for USCDI v4
Attached please find CMS-CCSQ's priority data elements and rationale for consideration for USCDI v4.
Submitted by m.goldan@asahq.org on
American Society of Anesthesiologists Comments on Draft USCDI v4
Please see the attached comments from the American Society of Anesthesiologists on the draft USCDI v4. Thank you for your consideration of our comments.
Submitted by Erin_ORourke_AHIP on
Attached please find AHIP's…
Attached please find AHIP's comments on USCDI version 4. Thank you for the opportunity to comment.
Submitted by jessilott on
The TN Department of Health…
The TN Department of Health supports AHIP's stance regarding the exclusion of Alcohol Use and Substance Use in the Health Status Assessment class. The sensitivity of this information should it be shared inadvertently with entities that are not directly involved with management of the patient's alcohol or substance use presents great risk.
Submitted by victoria_tiase on
ANI Comments
Please see the attached document for comments from the Alliance for Nursing Informatics.
Submitted by mmoen48 on
USCDI DRAFT v4 Comments from ADVault, Inc.
We appreciate the opportunity to provide comments to the proposed USCDI v4 data classes and data elements.
Submitted by Robert Hussey on
Comments from Provation on USCDI v. 4
Attached are comments from Provation on the proposed United States Core Data for Interoperability, version 4. Thanks for the opportunity to comment.
Submitted by Robert Hussey on
Comments from Wolters Kluwer on USCDI v. 4
Attached are comments from Wolters Kluwer on USCDI v. 4. Thanks for allowing us to share our views.
WK Comments to ONC on Draft USCDI Version 4 April 2023 Final.pdf
Submitted by erjones on
Vizient Comments on Draft USCDI Version 4
Please see attached comments from Vizient on ONC's Draft United States Core Data Interoperability (USCDI) Version 4. Thank you for the opportunity to comment.
Submitted by yale-coredQMRoadmap on
CMS-CCSQ/CDC Joint Priorities for USCDI v4
Attached please find the CMS-CCSQ and CDC joint priority data elements and rationale for consideration for USCDI v4. Thank you for the opportunity to review and provide comment.
USCDIv4_CMS-CDC Joint Comment letter.pdf