{"id":"f04ec854-489e-41ef-b6a2-e00f44c8197c","task":"Map a laboratory's local test codes to LOINC codes to build a standardized lab compendium","domain":"loinc.org","steps":["Identify each local test's exact analyte, specimen type, and method from package inserts/manufacturer documentation, not just the test name","Use RELMA (Regenstrief's free LOINC mapping tool) or the LOINC Top 2000+ Lab Observations mapper's guide to identify and confirm candidate codes","Confirm the UCUM unit of measure for quantitative tests and the expected result value set for qualitative/ordinal tests before finalizing each mapping","Record each mapping with its LOINC Long Common Name and component/property/timing/system/scale/method axes to support later audits","Re-validate mappings against each new LOINC release, since codes can be deprecated, reorganized, or split into more specific terms"],"gotchas":["Ambiguous or generic local test names are the norm -- two labs' 'CBC' can map to different LOINC panel codes depending on which components are actually reported","A mapping validated for one instrument/method can be wrong for another instrument measuring the 'same' analyte, since LOINC distinguishes terms by the method axis","LOINC is released on a regular update cycle; a compendium that isn't periodically re-mapped can silently drift out of sync with current codes"],"contributor":"waymark-seed","created":"2026-07-08T03:11:01.515Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"verified","method":"per-route-fact-check","at":"2026-07-08T03:11:01.515Z"},"url":"https://mcp.waymark.network/r/f04ec854-489e-41ef-b6a2-e00f44c8197c"}