# Coding Symbols for a Thesaurus of Adverse Reaction Terms (COSTART)

> Coding Symbols for Thesaurus of Adverse Reaction Terms (COSTART). 5th ed. Rockville (MD)....

- Page: https://library.schematica.io/model/082d5f11a73043b097b47d879901c0cc
- Model type: Ontology
- License: UMLS
- Access type: Free
- Access method: Download
- Model size: Mid
- Formats: UMLS
- Domains: Healthcare
- Audiences: Researcher
- External link: https://bioportal.bioontology.org/ontologies/COSTART
- Contact: U.S. Food and Drug Administration Center for Drug Evaluation and Research (info@ntis.gov)
- Listed in library: 2025-06-12
- Last updated: 2025-09-10

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | COSTART |
| Description | Coding Symbols for Thesaurus of Adverse Reaction Terms (COSTART). 5th ed. Rockville (MD). COSTART is used for coding, filing, and retrieving post-marketing adverse drug and biologic experience reports. COSTART is organized in body system and pathophysiology hierarchies, as well as a separate fetal/neonatal category of less than 20 terms.<br><br>COSTART has been superseded by the Medical Dictionary for Regulatory Activities (MedDRA) Terminology. For more information about MedDRA in the Metathesaurus, see the MedDRA source synopsis.<br><br>COSTART was last updated in the Metathesaurus in 1999. |
| Format | UMLS |
| Categories | Health |
| Groups | Unified Medical Language System |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 1,707 |
| Individuals | 0 |
| Properties | 1 |
| Max Depth | 7 |
| Max Child Count | 96 |
| Average Child Count | 7 |
| Classes With One Child | 45 |
| Classes With More Than 25 Children | 16 |
| Classes With No Definition | 1,707 |

## Projects using COSTART

- [Signaling ADEs from social media](https://bioportal.bioontology.org/projects/ASPASM)

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Source: https://library.schematica.io/model/082d5f11a73043b097b47d879901c0cc