My apologies if this has been asked: I am new to using OpenFDA and am trying to query the database to obtain a list of the ndc and rxcui associated with a particular application numbers appearing in FAERS. More specifically, I downloaded faers and tried to query one of the application numbers appearing in the dataset, e.g. 21752. However, I obtained the error "no matches found" when searching for on a specific applications number, e.g. https://api.fda.gov/drug/event.json?search=20patient.drug.openfda.application_number:"2221752".
Is it possible to query openFDA event data to obtain the ndc and rxcui associated with a specific application number?