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Table 1 Mapping summary from UMLS and OMOP CDM

From: Evaluating MedDRA-to-ICD terminology mappings

 

MedDRA PT

MedDRA LLT

Type of mapping

UMLS

OMOP

UMLS

OMOP

MedDRA terms mapped from ICD-9-CM

2788

3308

13,458

200

MedDRA terms mapped from ICD-10-CM

3819

3542

13,851

213

Union of unique MedDRA terms from UMLS and OMOP

5726

19,860

Union of unique MedDRA PT terms after converting LLT to PT

6413

  1. Note. The values in each column refer to the number of terms