I am working with the ‘CanMED: Cancer Medications Enquiry Database’ from the NCI/SEER Observational Research in Oncology Toolbox (see here https://seer.cancer.gov/oncologytoolbox/) in hopes that it can be used for the vocabulary portion of the Oncology Treatment Proposal (see here: https://github.com/OHDSI/CommonDataModel/issues/163). CANMed classifies low-level NDC/HCPCS codes to higher-level concepts: ‘Minor Class’, ‘Major Class’ and a ‘SEERRx Category’. Importantly, CanMED’s highest level classification, the 'SEERRx Category’, can be mapped to NAACCR/SEER data items. This could be the basis for the ability to crosswalk between EHR oncology treatment data and tumor registry oncology treatment data.
As part of my analysis of CanMED I want to map its NDC/HCPCS codes to RxNorm codes. I am using the OMOP vocabulary to achieve the mappings to RxNorm. I have found some missing codes and mappings within the OMOP vocabulary.
Missing NDC codes: 25
https://drive.google.com/open?id=1ZOAz34rkGv_efF0Bm7o8CILzwvpDhnVg
NDC codes with no map to RxNorm: 118
https://drive.google.com/open?id=1sFUM_T77-bJWLBzO8IdMjvB2-u19NRiM
Missing HCPCS codes: 41
https://drive.google.com/open?id=16v3SeCNUff-yWicLT-na97I9bE5_1rHd
HCPCS codes with no map to RxNorm: 54
https://drive.google.com/open?id=1X8o8M6SJU8bKg5V12PkclqKjbKoNt0tC
Could these missing items be addressed?