The National Electronic Injury Surveillance System (NEISS) database offers Excel downloads (example XLSX, ~50MB) on a year by year basis. The categorization of the injuries in the Excel files is given by codes, which may change or merge year to year. The codes are available in the Coding Manual PDF, and changes are available in the 2016 Comparability Table PDF.
The query tool hides the codes from the user and shows only the characterizations (e.g. Diagnosis).
Is there a machine readable source for the mapping between codes and descriptions?