CLIF Data Dictionary Change Log
Track the evolution of the Common Longitudinal ICU data Format (CLIF) through its version history. This change log documents all updates, improvements, and structural changes to the data dictionary.
Version 2.2.0 (TBD)
Beta Status Updates
- Add Code status to Beta Status
- Add ICD codes table to Beta Status
Version 2.1.0 (September 2025)
Data Structure Updates
- Move CRRT therapy to Beta status
- Move ECMO MCS to Beta status
- Move Micro non-culture to Beta status (Issue #65)
- Finalize patient language category mCIDE (Issue #13)
- Add ADT location type field with finalized mCIDE (Issues #39, #64)
- Finalize hospitalization admission type mCIDE (Issue #16)
- Add LTACH to admission_type mCIDE
Version 2.0.0 (February 2025) Current Version
Major ERD Upgrade
- Combined patient and hospitalization tables for improved data structure
- Introduced maturity concept for ERD and tables (Beta, Concept, Future)
- Added comprehensive Beta tables with production-ready structures
- Defined concept tables for future implementation
- Standardized mCIDE (minimum Common ICU Data Elements) across all tables
- Standardized all datetime variables to be time zone aware with UTC format (Issue #40)
Note: This version represents a major restructuring of the CLIF data format with significant improvements to standardization and interoperability across institutions.
Version 1.0.0
First official release of the Common Longitudinal ICU data Format (CLIF)
- Initial table structure definitions
- Core entity-relationship model
- Foundation for multi-institutional critical care data standardization