Abstract: Surgical procedures are coded in SNOMED CT in the electronic health record and in ICD-10-PCS in administrative systems. We compared the logical definitions of SNOMED CT concepts to the ICD-10-PCS axial components to identify overlap and gaps. The biggest discrepancy was in the surgical approach which was specified in all ICD-10-PCS codes but only in 8.7% of SNOMED CT surgical procedures. Among the top 100 commonly used ICD-10-PCS codes, 25% could be matched fully in meaning and logical definition to pre-coordinated SNOMED CT concepts. Using post-coordination, it was possible to represent the full meaning of 86% of ICD-10-PCS codes. Logical mapping between SNOMED CT and ICD-10-PCS is feasible but will be more productive if more SNOMED CT concepts can become fully-defined. Short of full logical matching, partial logical matches can also be useful in suggesting candidate maps for expert review and to support interactive post-coordination.

Learning Objective 1: The comparison of the SNOMED CT concept model to the ICD-10-PCS component axes to identify overlap and gaps.

Learning Objective 2: The feasibility of logical mapping between SNOMED CT and ICD-10-PCS based on the analysis of commonly used ICD-10-PCS procedure codes.


Kin Wah Fung (Presenter)
National Library of Medicine

Julia Xu, National Library of Medicine
Filip Ameye, National Institute for Health and Disability Insurance
Arturo Romero-Gutiérrez, Ministry of Health, Social Services and Equality
Arabella D’Havé, Federal Public Service of Health, Food Chain Safety and Environment

Presentation Materials: