Please see http://www.ohdsi.org/web/atlas/#/conceptset/1718587/details
Input is a non-standard code. In concept-set expression, ‘mapped’ is selected.
The relevant API end points are
1. API endpoint that returns header information
http://api.ohdsi.org/WebAPI/conceptset/1718587
{"id":1718587,"name":"Non standard to standard crosswalk (NDC to RxNorm)"}
2. API endpoint that returns concept set expression
http://api.ohdsi.org/WebAPI/conceptset/1718587/expression
{"items":[{"concept":{"CONCEPT_ID":45111557,"CONCEPT_NAME":"valacyclovir 1000 MG Oral Tablet","STANDARD_CONCEPT":"N","INVALID_REASON":"V","CONCEPT_CODE":"00093725998","DOMAIN_ID":"Drug","VOCABULARY_ID":"NDC","CONCEPT_CLASS_ID":"11-digit NDC","INVALID_REASON_CAPTION":"Valid","STANDARD_CONCEPT_CAPTION":"Non-Standard"},"isExcluded":false,"includeDescendants":false,"includeMapped":true}]}
3. API endpoint that return the concept items
http://api.ohdsi.org/WebAPI/conceptset/1718587/items
[{"id":1718589,"conceptSetId":1718587,"conceptId":45111557,"isExcluded":0,"includeDescendants":0,"includeMapped":1}]
Similarly, is there a way to obtain the mapped standard concepts? If there is no API end-points, can OHDSI R-tools do it?