Unattributed Code Systems

Copyright and Registered Trademark Uses

External References

Type Reference Content
web cassandra.apache.org Note that CQL is unrelated to the Cassandra Query Language (see: http://cassandra.apache.org/doc/latest/cql/ ).  ↩
web elm-lang.org Note that ELM is unrelated to the similarly named elm programming language (see http://elm-lang.org ).  ↩
web unitsofmeasure.org The number portion of a quantity can be an Integer or Decimal , and the unit portion is a (single-quoted) String representing a valid Unified Code for Units of Measure (UCUM) unit or calendar duration keyword, singular or plural. To avoid the possibility of ambiguity, UCUM codes shall be specified using the case-sensitive (c/s) form.
web www.iso.org Within CQL, calculations involving date/times and calendar durations shall use calendar semantics as specified in ISO8601 . Specifically:
web github.com Note that the examples in this section are adapted from the CDS Connect FHIR Commons library.
web www.pcre.org Platforms will typically use native regular expression implementations. These are typically fairly similar, but there will always be small differences. As such, CQL does not prescribe a particular dialect, but recommends the use of the PCRE dialect.
web www.antlr.org The formal specification for the CQL syntax is defined using the ANTLR4 grammar framework. This framework is a general purpose cross-platform technology for describing computer languages. For more information on this framework, refer to the ANTLR website .
web www.apache.org The CQL-to-ELM Translator is licensed under the open source Apache Version 2.0 license, and available as part of the clinical_quality_language project on GitHub: https://github.com/cqframework/clinical_quality_language, as well as a Maven Package ( Snapshots ).
web search.maven.org The CQL-to-ELM Translator is licensed under the open source Apache Version 2.0 license, and available as part of the clinical_quality_language project on GitHub: https://github.com/cqframework/clinical_quality_language, as well as a Maven Package ( Snapshots ).
web oss.sonatype.org The CQL-to-ELM Translator is licensed under the open source Apache Version 2.0 license, and available as part of the clinical_quality_language project on GitHub: https://github.com/cqframework/clinical_quality_language, as well as a Maven Package ( Snapshots ).
web atom.io Other CQL-related tools such as a graphical CQL grammar parsetree viewer, a ModelInfo generator, and a CQL syntax highlighting plugin for Atom are also available. The Clinical Quality Framework Initiative maintains a list of known Community Projects on the CQL Github Wiki:
web unitsofmeasure.org This material contains content from the Unified Code for Units of Measure (UCUM) ( http://unitsofmeasure.org ). The UCUM specification is copyright (c) 1999-2013, Regenstrief Institute, Inc. and available at no cost under the license at http://unitsofmeasure.org/trac/wiki/TermsOfUse .
web unitsofmeasure.org This material contains content from the Unified Code for Units of Measure (UCUM) ( http://unitsofmeasure.org ). The UCUM specification is copyright (c) 1999-2013, Regenstrief Institute, Inc. and available at no cost under the license at http://unitsofmeasure.org/trac/wiki/TermsOfUse .
web github.com J#FHIR-27058 : Clarified allowed terminology operations in the terminology target of a retrieve View changes
web github.com J#FHIR-27059 : Clarified equality and equivalent behavior between UCUM and calendar units View changes
web github.com J#FHIR-27060 : Added discussion of quantity equivalent, equivalent, and comparison operators with respect to calendar and definite quantity duration units to the Appendix B reference documentation and logical specification. View changes
web github.com J#FHIR-27062 : Added implementer's note about models that may define implicit conversions from UCUM time-valued durations to CQL calendar durations View changes
web github.com J#FHIR-27076 : Allowed declarations in any order View changes
web github.com J#FHIR-27081 : Updated test reference specification to 1.5 View changes
web github.com J#FHIR-27090 : Added descriptions to the lists of tables and figures View changes
web github.com J#FHIR-27099 : Additional examples of time interval calculations to better illustrate semantics View changes
web github.com J#FHIR-27440 : Clarified description of tokens View changes
web github.com J#FHIR-27448 : Clarified description of escaping View changes
web github.com J#FHIR-27450 : Clarified description of date and time literals View changes
web github.com J#FHIR-27452 : Clarified description of binding View changes
web github.com J#FHIR-27453 : Clarified description of value set names View changes
web github.com J#FHIR-27454 : Clarified description of code systems View changes
web github.com J#FHIR-27455 : Clarified description of structured value selector semantics View changes
web github.com J#FHIR-27456 : Clarified description of point from semantics View changes
web github.com J#FHIR-27457 : Clarified return types in Table 2-H View changes
web github.com J#FHIR-27458 : Clarified description of duration units View changes
web github.com J#FHIR-27459 : Clarified description of calendar semantics View changes
web github.com J#FHIR-27461 : Clarified description of calendar months View changes
web github.com J#FHIR-27466 : Clarified description of quoted identifiers View changes
web github.com J#FHIR-27467 : Clarified description or return clause View changes
web github.com J#FHIR-27468 : Clarified description of sort clause View changes
web github.com J#FHIR-27469 : Added reference to Arithmetic Operators section View changes
web github.com J#FHIR-27488 : Clarified library containership semantics View changes
web github.com J#FHIR-27489 : Clarified context definition scope View changes
web github.com J#FHIR-27490 : Clarified description of function definitions View changes
web github.com J#FHIR-27503 : Clarified description of expression semantics View changes
web github.com J#FHIR-27505 : Document justification for called syntax View changes
web github.com J#FHIR-27508 : Clarified description of context declaration View changes
web github.com J#FHIR-27510 : Added links to and definition of symbols introduced in the retrieve terminology discussion. View changes
web github.com J#FHIR-27511 : Improved documentation of retrieve evaluation semantics View changes
web github.com J#FHIR-27512 : Clarified best practice for context declarations and cross-context expression references View changes
web github.com J#FHIR-27513 : Clarified retrieve expression documentation View changes
web github.com J#FHIR-27515 : Clarified description of null comparison semantics View changes
web github.com J#FHIR-27516 : Clarified description of distinct semantics View changes
web github.com J#FHIR-27517 : Clarified description of unsorted semantics View changes
web github.com J#FHIR-27518 : Clarified null sorting behavior documentation View changes
web github.com J#FHIR-27520 : Added reference to Timing Relationships discussion View changes
web github.com J#FHIR-27943 : Clarify decimal precision implementation expectations View changes
web github.com J#FHIR-28072 : Same as 27060 View changes
web github.com J#FHIR-28074 : Clarified decimal comparison semantics View changes
web github.com J#FHIR-28113 : Clarified timezone offset normalization behavior for date extractors View changes
web github.com J#FHIR-27067 : Changed text for multi-line comments to not use the @@ delimiter View changes
web github.com J#FHIR-27073 : Simplified and expanded aggregate clause discussion View changes
web github.com J#FHIR-27074 : Expanded documentation of the aggregate clause View changes
web github.com J#FHIR-27075 : Clarified documentation of multiple-argument fluent functions View changes
web github.com J#FHIR-27077 : Expanded search path documentation View changes
web github.com J#FHIR-27078 : Clarified that search parameter elements are Trial-Use View changes
web github.com J#FHIR-27079 : Clarified that include and reverseInclude are Trial-Use View changes
web github.com J#FHIR-27102 : Expanded documentation of fluent functions View changes
web github.com J#FHIR-27080 : Clarified trial-use vs normative changes in the change log View changes
web github.com J#FHIR-27439 : Updated reference implementation references View changes
web github.com J#FHIR-27441 : Clarified description of expressions View changes
web github.com J#FHIR-27442 : Clarified description of organization View changes
web github.com J#FHIR-27444 : Clarified description of clauses View changes
web github.com J#FHIR-27445 : Clarified description of meaningful View changes
web github.com J#FHIR-27446 : Added references to Comparison and Logical operators View changes
web github.com J#FHIR-27447 : Added references to Arithmetic operators View changes
web github.com J#FHIR-27465 : Clarified description of terminology example View changes
web github.com J#FHIR-27473 : Added libraryId and libraryVersion to error annotation information View changes
web github.com J#FHIR-27476 : Improved image resolution of Figure 1-A View changes
web github.com J#FHIR-27479 : Documented community adoption and added language capabilities listing View changes
web github.com J#FHIR-27480 : Added captions for tables and figures throughout View changes
web github.com J#FHIR-27482 : Improved quality of Figure 1-A View changes
web github.com J#FHIR-27484 : Clarified documentation of target scope View changes
web github.com J#FHIR-27485 : Added missing link to HQMF specification View changes
web github.com J#FHIR-27486 : Added description of ANTLR4 View changes
web github.com J#FHIR-27487 : Added missing links to referenced specifications View changes
web github.com J#FHIR-27492 : Added example data model with version View changes
web github.com J#FHIR-27494 : Clarified description of terminology example View changes
web github.com J#FHIR-27495 : Clarified reference to QUICK and QI-Core View changes
web github.com J#FHIR-27496 : Clarified documentation of target domain View changes
web github.com J#FHIR-27497 : Clarified documentation of architectural layers View changes
web github.com J#FHIR-27498 : Improved content and documentation of Figure 1-B View changes
web github.com J#FHIR-27499 : Improved documentation of justification for ELM View changes
web github.com J#FHIR-27500 : Clarified justification for parentheses View changes
web github.com J#FHIR-27502 : Clarified documentation of language background View changes
web github.com J#FHIR-27504 : Clarified documentation of include declarations View changes
web github.com J#FHIR-27507 : Added reference to Terminology operators View changes
web github.com J#FHIR-27509 : Added a diagram to more clearly illustrate the notion of contexts View changes
web github.com J#FHIR-27514 : Added syntax diagrams as an Appendix and linked throughout View changes
web github.com J#FHIR-27519 : Added simple patient information model to illustrate example queries View changes
web github.com J#FHIR-27522 : Added use of quoted-identifiers to examples throughout View changes
web github.com J#FHIR-27894 : Added target attributes to support additional mapping capabilities in model info View changes
web github.com J#FHIR-27061 : Same as 28438 View changes
web github.com J#FHIR-27063 : Corrected examples of "last day of month" behavior for date arithmetic View changes
web github.com J#FHIR-27064 : Fixed spelling View changes
web github.com J#FHIR-27068 : Corrected example View changes
web github.com J#FHIR-27070 : Updated references to initial patient population to initial population throughout View changes
web github.com J#FHIR-27100 : Corrected inconsistent timezone offset range View changes
web github.com J#FHIR-27443 : Fixed comma View changes
web github.com J#FHIR-27449 : Fixed spelling View changes
web github.com J#FHIR-27451 : Fixed spelling View changes
web github.com J#FHIR-27460 : Fixed spelling View changes
web github.com J#FHIR-27463 : Fixed spelling View changes
web github.com J#FHIR-27464 : Fixed spelling View changes
web github.com J#FHIR-27470 : Fixed spelling View changes
web github.com J#FHIR-27471 : Fixed formatting View changes
web github.com J#FHIR-27472 : Fixed formatting View changes
web github.com J#FHIR-27475 : Fixed hyperlinks View changes
web github.com J#FHIR-27477 : Fixed section reference View changes
web github.com J#FHIR-27478 : Corrected chapter reference View changes
web github.com J#FHIR-27481 : Added references to Table 1-A View changes
web github.com J#FHIR-27483 : Fixed typo View changes
web github.com J#FHIR-27493 : Fixed spelling View changes
web github.com J#FHIR-27506 : Fixed spelling View changes
web github.com J#FHIR-27521 : Fixed spelling View changes
web github.com J#FHIR-27523 : Fixed spelling View changes
web github.com J#FHIR-27524 : Fixed spelling View changes
web github.com J#FHIR-27525 : Fixed spelling View changes
web github.com J#FHIR-27526 : Fixed spelling View changes
web github.com J#FHIR-27527 : Fixed capitalization View changes
web github.com J#FHIR-27528 : Fixed spelling View changes
web github.com J#FHIR-27529 : Fixed spelling View changes
web github.com J#FHIR-27530 : Fixed spelling View changes
web github.com J#FHIR-27531 : Fixed spelling View changes
web github.com J#FHIR-28438 : Aligned with FHIRPath to consider calendar durations above weeks, rather than above seconds, uncomparable with definite-time duration View changes
web github.com J#FHIR-29552 : Provided example of access to interval properties View changes
web github.com J#FHIR-29931 : Corrected media types for cql.identifier and cql.expression to cql-identifier and cql-expression based on IANA feedback View changes
web github.com J#FHIR-29932 : Fixed backwards compatibility for TimezoneFrom View changes
web github.com J#FHIR-29934 : Corrected type of target attribute in model info View changes

Internal Images