Mapping from the International Classification of Diseases (ICD) 9th to 10th Revision for Research in Biologics and Biosimilars Using Administrative Healthcare Data.
Mengdong HeAdrian J Santiago OrtizJames MarshallAaron B MendelsohnJeffrey R CurtisCharles E BarrCatherine M LockhartSeoyoung C KimPublished in: Pharmacoepidemiology and drug safety (2019)
FBM is generally the most efficient way to convert ICD-9 to ICD-10 codes, yet manual review of converted ICD-10 codes is recommended even for FBM. The lack of existing guidance to compare the performance of ICD-9 with ICD-10 codes led to challenges in empirically determining the quality of conversions.