1. Procedure coding in the American Joint Replacement Registry
September R. Cahue, MPH, Caryn D. Etkin, PhD, MPH, Louis S. Stryker, MD, Frank R. Voss, MD 
Arthroplasty Today 
Volume 5, Issue 2, Pages (June 2019)
DOI: /j.artd
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2. Figure 1 ICD-10-PCS 7-character structure.
Arthroplasty Today 2019 5, DOI: ( /j.artd )
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3. Figure 2
(a) Knee arthroplasty checklist; (b) hip arthroplasty checklist.
Arthroplasty Today 2019 5, DOI: ( /j.artd )
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