RxNorm Lab Evaluation
- Completeness
- 19,824 non-device new prescriptions & renewal requests
- 195 (0.98%) no matching SCD found;
- 94% multi-vitamins, bowel preps, drugs packaged in a drug delivery device
- 18,733 (94.5%) matched by 3 of 3
- Mismatches
- 1003 of 19450 with 2+ SCD matches (6.2%)
- Root causes:
- RxNorm errors
- Synonymy already corrected as of Jan, 2007 (20%)
- Previously unrecognized synonymy (30%)
- Source errors
- Bad NDC-to-SCD mappings used by one of the matchers
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