pankajrajdeo/MRCUI_UMLS

Dataset Card for MRCUI Data

Dataset Description

Dataset Summary

The MRCUI data is a component of the UMLS (Unified Medical Language System) Metathesaurus, available in the Rich Release Format (RRF). This dataset contains mappings of retired Concept Unique Identifiers (CUIs) to current CUIs, providing essential information for understanding changes in concept identifiers across different versions of the Metathesaurus. It supports the identification of deprecated concepts and their current equivalents, ensuring continuity and consistency in medical terminology usage.

Purpose

The MRCUI dataset aids developers and researchers in tracking the evolution of medical concepts by mapping retired CUIs to their current counterparts. This is crucial for maintaining the accuracy and relevance of medical informatics applications, clinical decision support systems, and other health-related software solutions.

Column Descriptions

CUI1 (Retired Concept Unique Identifier)

• Description: A unique identifier for a concept that was present in some prior release of the Metathesaurus but is currently retired.
• Values: Alphanumeric strings, such as C1313903. Each value uniquely identifies a retired medical concept.

VER (Version)

• Description: The last release version in which CUI1 was a valid CUI.
• Values: Alphanumeric strings indicating the version, such as 2004AA. Each value represents the version of the Metathesaurus in which the CUI was last valid.

REL (Relationship)

• Description: The type of relationship between the retired CUI (CUI1) and the current CUI (CUI2).
• Values: Alphanumeric strings representing relationship types, such as SY (Synonym), RO (Related Other), RB (Broader), RN (Narrower), DEL (Deleted).

CUI2 (Current Concept Unique Identifier)

• Description: A unique identifier for the current concept that CUI1 most closely maps to.
• Values: Alphanumeric strings, such as C0525045. Each value uniquely identifies the current equivalent medical concept.

MAPIN (Map Inclusion)

• Description: Indicates whether the CUI2 concept is present in the current subset generated by MetamorphoSys.
• Values: One of the following values - Y (Yes), N (No), or null. Y indicates the CUI2 concept is present in the subset, N indicates it is not, and null is for rows where CUI1 was not present to begin with (i.e., REL=DEL).

Example Record

CUI1:       C1313903
VER:        2004AA
REL:        SY
CUI2:       C0525045
MAPIN:      Y

Usage

This dataset is primarily intended for developers and researchers working on medical informatics applications. It can be used to track changes in concept identifiers, ensuring continuity and consistency in medical terminology, support clinical decision-making, and enhance health information systems.