Classification algorithm for the International Classification of Diseases-11 chronic pain classification: development and results from a preliminary pilot evaluation

In Brief The International Classification of Diseases-11 (ICD-11) chronic pain classification includes about 100 diagnoses on different diagnostic levels. Each these requires specific operationalized criteria to be present. comprises more than 200 criteria. aim the Algorithm for Chronic Pain in ICD-11 (CAL-CP) is facilitate use by guiding users through were ordered hierarchically and visualized accordance with standards defined Society Medical Decision Making Committee Standardization Clinical Algorithms. resulting linear decision tree underwent several rounds iterative checks feedback its developers, as well other experts. A preliminary pilot evaluation was conducted context an ecological implementation field study itself. algorithm consists a tree, introduction form, appendix. initial trunk can used standalone primary care. criterion represented box. user needs decide each whether it present or not, then follow respective yes no arrows arrive at corresponding diagnosis. results showed good clinical utility algorithm. CAL-CP contribute reliable structuring way increasing adherence Future studies need evaluate further analyze impact accuracy assigned diagnoses. that guides classification, hence facilitating process.