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Sweden
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NPCR_Anmälan_FHIR
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NPCRPIRADSCategory
NPCR-internal code system for the highest PI-RADS (Prostate Imaging Reporting and Data System) assessment category reported in MRI examinations, based on NPCR Variabelbeskrivning variable D_Pirads.
PI-RADS v2.1 is a 5-point scale developed by the American College of Radiology (ACR) to assess the likelihood of clinically significant prostate cancer from multiparametric MRI. NPCR extends the standard 5-point scale with one additional combined option (code 6 = PI-RADS 1-2 combined) and one missing-data marker (98 = Uppgift saknas).
Codes 1 through 5 directly correspond to PI-RADS v2.1 categories as defined by ACR. Code 6 is an NPCR-specific data-entry convenience representing a combined 'PI-RADS 1 or 2' option (low likelihood, not distinguishable in the source report); code 98 indicates missing data in the MRI report.
Terminology binding rationale: NPCR documentation does not specify an international code system binding for PI-RADS values. PI-RADS is an ACR reporting system rather than a standard terminology like SNOMED CT or LOINC; while LOINC does contain codes for PI-RADS-related observations, NPCR Info Spec does not reference them. This CodeSystem mirrors NPCR's internal coded values to preserve documentation fidelity. Future mapping to LOINC/SNOMED CT for PI-RADS is noted as future work.
- type CodeSystem
- FHIR R4
- status Draft
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version...
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Documentation:
https://simplifier.net/npcr-fhir/npcr-pirads-category
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