FHIRPath
summary
FHIRPath is a path traversal and extraction language like XPath that points into FHIR instances to build search parameters, validation rules and narrative extracts; it runs on an abstract tree so JSON or XML don’t matter, and there are .NET and JavaScript engines plus an online tester. Key surprises: everything is a list (even single-value fields), zero-based indexes, and three-valued logic for missing data; use where, select (and select-many) and the implies operator to avoid empty-result pitfalls.
AI-written summary · about
chapters (7)
- 0:00Intro
- 1:25FHIRPath
- 5:52Navigation
- 13:47Lists
- 19:45List Operations
- 24:52Type Features
- 26:22Observable Values
