QI-Core Implementation Guide
4.1.0 - release

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## ValueSet: QICore Observation Delta Value Set Definition

Summary

Defining URL: | http://hl7.org/fhir/us/qicore/ValueSet/qicore-observation-delta
Version: | 4.1.0
Name: | QICoreObservationDelta
Title: | QICore Observation Delta Value Set Definition
Status: | Draft as of 8/22/18
Definition: | Code indicating how the current observation compares to previous observations - e.g., no change, rising trend, decreasing trend, etc...
Publisher: | http://www.hl7.org/Special/committees/cqi/index.cfm
Source Resource: | XML / JSON / Turtle

References

This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

### Logical Definition (CLD)

- Include these codes as defined in `http://terminology.hl7.org/CodeSystem/v2-0078`

  Code | Display
  B | Better-use when direction not relevant
  D | Significant change down
  U | Significant change up
  W | Worse-use when direction not relevant

### Expansion

This value set contains 4 concepts

Expansion based on v2 ABNORMAL FLAGS v2.9 (CodeSystem)

All codes in this table are from the system `http://terminology.hl7.org/CodeSystem/v2-0078`

Code | Display
B | Better-use when direction not relevant
D | Significant change down
U | Significant change up
W | Worse-use when direction not relevant

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