Reasoning around moving to CCI and our subset of it

This article explains our choice of Canadian Classification of Interventions (CCI) as a procedure coding schema and of the subset of codes we include.

Why are we moving to a new procedure coding schema?

• Our old diagnosis list was made in-house designed mostly for the Critical Care setting where our database started out. In that data set we combined diagnoses and procedures.
• A serious limitation of the current/old system is that it did not distinguish procedures from diagnoses. For example, CABG was considered as a diagnosis, when it's actually a procedure done for a diagnosis of coronary artery disease.

Why are we moving to CCI rather than a different coding schema?

• Going along with the diagnosis coding in ICD10, the Canadian national standard usrd by CIHI for coding of procedures of all types is Canadian Classification of Interventions (CCI)

Why do we not include the entire set of CCI codes

We have made a number of adaptations so we don't need to use all 18,000 codes.

Why are we including the subset of procedures that we do

Template:Discussion Why?