---
dataset_info:
  features:
  - name: AUI1
    dtype: string
  - name: CUI1
    dtype: string
  - name: VER
    dtype: string
  - name: MAPREASON
    dtype: string
  - name: AUI2
    dtype: string
  - name: CUI2
    dtype: string
  - name: MAPIN
    dtype: string
  splits:
  - name: train
    num_bytes: 23148340
    num_examples: 320824
  download_size: 8611421
  dataset_size: 23148340
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
---

# Dataset Card for MRAUI Data

## Dataset Description
### Dataset Summary
The MRAUI data is a part of the UMLS (Unified Medical Language System) Metathesaurus, specifically available in the Rich Release Format (RRF). This dataset contains records of movements of Atom Unique Identifiers (AUI) between different concepts (CUI) across versions of the Metathesaurus. It provides a detailed record of changes in atom assignments and mappings, facilitating the tracking of updates and adjustments in medical terminology and concept relationships.

### Purpose
The MRAUI dataset serves as a critical resource for understanding the historical changes and mappings of atom identifiers within the UMLS Metathesaurus. It helps developers and researchers track updates, ensuring accurate and up-to-date representations of medical concepts and their relationships, thereby supporting medical informatics applications and other health-related software solutions.

## Column Descriptions
### AUI1 (Atom Unique Identifier 1)
- **Description**: A unique identifier for the first atom involved in the movement or mapping.
- **Values**: Alphanumeric strings of 89 characters, such as `A0019180`. Each value uniquely identifies an atom within the dataset.

### CUI1 (Concept Unique Identifier 1)
- **Description**: A unique identifier for the first concept associated with AUI1.
- **Values**: Alphanumeric strings of 88 characters, such as `C0001175`. Each value uniquely identifies a concept within the dataset.

### VER (Version)
- **Description**: The version of the Metathesaurus in which the change to the AUI first occurred.
- **Values**: Alphanumeric strings, such as `2004AC`, representing various versions of the Metathesaurus.

### MAPREASON (Reason for Mapping)
- **Description**: The reason for the mapping or movement of the atom identifier.
- **Values**: Alphanumeric string, typically a single value such as `move`, indicating the reason for the mapping.

### AUI2 (Atom Unique Identifier 2)
- **Description**: A unique identifier for the second atom involved in the movement or mapping.
- **Values**: Alphanumeric strings of 89 characters, such as `A0021048`. Each value uniquely identifies an atom within the dataset.

### CUI2 (Concept Unique Identifier 2)
- **Description**: A unique identifier for the second concept associated with AUI2. It represents the current concept that CUI1 most closely maps to.
- **Values**: Alphanumeric strings of 88 characters, such as `C0001175`. Each value uniquely identifies a concept within the dataset.

### MAPIN (Mapping in Current Subset)
- **Description**: Indicates whether AUI2 is in the current subset. Possible values are `Y` (Yes), `N` (No), or null.
- **Values**: Alphanumeric string indicating the inclusion status of AUI2 in the current subset.

## Example Record
```
AUI1:       A0019180
CUI1:       C0001175
VER:        2004AC
MAPREASON:  move
AUI2:       A0021048
CUI2:       C0001175
MAPIN:      Y
```

## Usage
This dataset is primarily intended for developers and researchers working on medical informatics applications. It can be used to track the historical changes and mappings of atom identifiers, ensuring accurate and comprehensive understanding of medical concepts and their relationships over different versions of the UMLS Metathesaurus.