2026 US Quality Core Implementation Guide
0.5.0 - cibuild US

2026 US Quality Core Implementation Guide, published by Office of the National Coordinator for Health Information Technology (ONC). This guide is not an authorized publication; it is the continuous build for version 0.5.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/FHIR/us-quality-core/ and changes regularly. See the Directory of published versions

## ValueSet: Non-Negative Event Status

Official URL: http://fhir.org/guides/onc/us-quality-core/ValueSet/us-quality-core-non-negative-event-status | Version: 0.5.0
Active as of 2026-05-15 | Computable Name: NonNegativeEventStatus

This value set defines the set of codes that indicate a non-negated event status (i.e. codes that are not `not-done`)

This value set was defined to support the set of event statuses in FHIR that do not explicitly indicate a negative status (i.e. all the codes from the http://hl7.org/fhir/event-status code system that are not `not-done`).

References

- US Quality Core Communication
- US Quality Core Procedure

### Logical Definition (CLD)

- Include these codes as defined in `http://hl7.org/fhir/event-status` version 📦4.0.1

  Code | Display | Definition
  preparation | Preparation | The core event has not started yet, but some staging activities have begun (e.g. surgical suite preparation). Preparation stages may be tracked for billing purposes.
  in-progress | In Progress | The event is currently occurring.
  on-hold | On Hold | The event has been temporarily stopped but is expected to resume in the future.
  stopped | Stopped | The event was terminated prior to the full completion of the intended activity but after at least some of the 'main' activity (beyond preparation) has occurred.
  completed | Completed | The event has now concluded.
  entered-in-error | Entered in Error | This electronic record should never have existed, though it is possible that real-world decisions were based on it. (If real-world activity has occurred, the status should be "stopped" rather than "entered-in-error".).
  unknown | Unknown | The authoring/source system does not know which of the status values currently applies for this event. Note: This concept is not to be used for "other" - one of the listed statuses is presumed to apply, but the authoring/source system does not know which.

### Expansion

Expansion performed internally based on codesystem EventStatus v4.0.1 (CodeSystem)

This value set contains 7 concepts

System | Code | Display (en) | Definition | JSON | XML
`http://hl7.org/fhir/event-status` | preparation | Preparation | The core event has not started yet, but some staging activities have begun (e.g. surgical suite preparation). Preparation stages may be tracked for billing purposes. |  |
`http://hl7.org/fhir/event-status` | in-progress | In Progress | The event is currently occurring. |  |
`http://hl7.org/fhir/event-status` | on-hold | On Hold | The event has been temporarily stopped but is expected to resume in the future. |  |
`http://hl7.org/fhir/event-status` | stopped | Stopped | The event was terminated prior to the full completion of the intended activity but after at least some of the 'main' activity (beyond preparation) has occurred. |  |
`http://hl7.org/fhir/event-status` | completed | Completed | The event has now concluded. |  |
`http://hl7.org/fhir/event-status` | entered-in-error | Entered in Error | This electronic record should never have existed, though it is possible that real-world decisions were based on it. (If real-world activity has occurred, the status should be "stopped" rather than "entered-in-error".). |  |
`http://hl7.org/fhir/event-status` | unknown | Unknown | The authoring/source system does not know which of the status values currently applies for this event. Note: This concept is not to be used for "other" - one of the listed statuses is presumed to apply, but the authoring/source system does not know which. |  |

Explanation of the columns that may appear on this page:

Level | A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies
System | The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code | The code (used as the code in the resource instance)
Display | The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition | An explanation of the meaning of the concept
Comments | Additional notes about how to use the code