PH3817 symptom colorectal CIBHOpenCodelists PhenotypeCoding Systems: SNOMED CT codes Collections: OpenCodelist Phenotype Library Last updated 2026-01-26 PHC, University of Oxford
PH3818 symptom colorectal IDAOpenCodelists PhenotypeCoding Systems: SNOMED CT codes Collections: OpenCodelist Phenotype Library Last updated 2026-01-26 PHC, University of Oxford
PH3820 symptom colorectal WLOpenCodelists PhenotypeCoding Systems: SNOMED CT codes Collections: OpenCodelist Phenotype Library Last updated 2026-01-26 PHC, University of Oxford