Aaos Procedure/Icd9 Code Crossreference 2015 - Aaos Procedure / Icd 9 Cross Reference Author:Aaos The more accurately your procedure(s) is linked with a diagnosis, the less difficulty youll have with reimbursement. The expanded 2015 cross-reference links primary and secondary ICD references applicable to each Current Procedural Terminology (CPT®) code, including 5th-digit details for localized diagnoses, and lists exclusions.