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Package binding validates FHIR terminology bindings.

Package cardinality provides cardinality validation for FHIR resources.

Package constraint validates FHIR constraints (invariants) using FHIRPath.

Package extension validates FHIR extensions against their StructureDefinitions.

Package fixedpattern validates fixed[x] and pattern[x] constraints from ElementDefinitions.

Package issue provides diagnostic message templates for FHIR validation.

Package loader handles loading FHIR packages from the NPM cache, local .tgz files, or remote URLs.

Package location provides utilities to find line and column positions in JSON source for FHIRPath expressions.

Package logger provides a simple logging interface for the validator.

Package primitive provides validation of FHIR primitive types against StructureDefinitions.

Package reference validates FHIR Reference elements.

Package registry provides a registry for FHIR StructureDefinitions.

Package slicing validates FHIR slicing constraints from StructureDefinitions.

Package specs provides embedded FHIR specification packages for R4, R4B, and R5.

Package structural provides structural validation of FHIR resources against StructureDefinitions.

Package terminology handles ValueSet and CodeSystem operations for FHIR validation.

Package validator provides a FHIR resource validator.

Package walker provides a generic resource walker for traversing FHIR resources, Bundle entries, and contained resources with a unified interface.