Alternatively, SNOMED has hierarchies we may be able to leverage rather than creating our own new hierarchies. They both fall under the "tumor finding" hierarchy.
Option A) Rebuild our own hierarchies within Cancer Modifier
Option B) Leverage SNOMED instead and de-standardize extension/invasion concepts in Cancer Modifier
Option C) Something else
Extension and Invasion concepts exist within Cancer Modifier but have no linkages - neither mappings nor hierarchically.
Extension example: https://athena.ohdsi.org/search-terms/terms/36769838
Invasion example: https://athena.ohdsi.org/search-terms/terms/36769449
Alternatively, SNOMED has hierarchies we may be able to leverage rather than creating our own new hierarchies. They both fall under the "tumor finding" hierarchy.
SNOMED Invasion hierarchy : https://athena.ohdsi.org/search-terms/terms/4159956
SNOMED Extension hierarchy: https://athena.ohdsi.org/search-terms/terms/4300153
Option A) Rebuild our own hierarchies within Cancer Modifier Option B) Leverage SNOMED instead and de-standardize extension/invasion concepts in Cancer Modifier Option C) Something else