Automated clinical concept mapping using SNOMED

A method for automated clinical concept mapping using SNOMED CT (Systematized Nomenclature of Medicine Clinical Terms), comprising:

• obtaining mappings between ICD (International Classification of Disease) codebases and a SNOMED CT ontology that is organized as a directed acyclic graph (DAG), and using the mappings to map International Classification of Disease, Revision 9 (ICD-9) codes and International Classification of Disease, Revision 10 (ICD-10) codes to SNOMED CT concepts on the DAG;
• identifying one or more of the ICD-9 codes and ICD-10 codes unpaired with a shared SNOMED CT concept on the DAG;
• identifying, for each of the unpaired ICD-9 codes and ICD-10 codes, a common SNOMED CT concept on the DAG;
• determining, for each of the unpaired ICD-9 codes and ICD-10 codes having a common SNOMED CT concept, a semantic similarity of clinical descriptions therebetween;
• and
• pairing one or more of the identified unpaired ICD-9 codes and one or more of the identified unpaired ICD-10 codes based on their respective common SNOMED CT concept and their respective semantic similarity.

One or more computer-readable media storing instructions which, when executed by one or more processors in a computing device cause the computing device to:

• obtain mappings between ICD (International Classification of Disease) codebases and a Systematized Nomenclature of Medicine Clinical Terminology (SNOMED CT) ontology that is represented as a directed acyclic graph (DAG), and using the mappings to map International Classification of Disease, Revision 9 (ICD-9) codes and International Classification of Disease, Revision 10 (ICD-10) codes to SNOMED CT concepts on the DAG;
• identify one or more of the ICD-9 codes and ICD-10 codes unpaired with a shared SNOMED CT concept on the DAG;
• identify, for each of the unpaired ICD-9 codes and ICD-10 codes, a common SNOMED CT concept on the DAG;
• determine, for each of the identified one or more unpaired ICD-9 codes and ICD-10 codes having a common SNOMED CT concept, a semantic similarity of clinical descriptions therebetween;
• and
• pair one or more of the identified unpaired ICD-9 code codes and one or more of the identified unpaired ICD-10 codes based on their respective common SNOMED CT concept and their respective semantic similarity.