Why anatomic locations - Why OIDM curates its own anatomic location set instead of pointing at an existing ontology, and every place those identifiers are used across the model.
Anatomic location data model - The record model for an anatomic location in both lineages, its identifier scheme, its two hierarchies, its laterality triads, its classification fields, and its external codes, with verified counts.
Laterality conventions - How sided anatomic locations are identified, linked, contained, and named in the curated set, and how a side is assigned to a finding at coding time.
Lineage and current implementation - The two anatomic location lineages, the original curated set with its wrapper libraries and the anatomic-locations package inside findingmodel, which one is current, and what remains unreconciled between them.
RadLex integration - What RadLex is, how the curated anatomic location set relates to it as an overlay, the open RSNA tracking issue for folding the set into RadLex, and the running list of node requests.
Anatomic location tooling - How to look up, search, and traverse anatomic locations with the anatomic-locations package and CLI, the older wrapper libraries, and the raw JSON download.