# ICD-O-3 Topography (OCD-O-3_TOPO)

> International Classification of Diseases for Oncology, 3rd Revision, Topography

- Page: https://library.schematica.io/model/f052a2ae24004b87aa2ae0eda0f618ec
- Model type: Ontology
- License: UMLS
- Access type: Free
- Access method: Download
- Model size: Small
- Formats: OWL
- External link: https://bioportal.bioontology.org/ontologies/OCD-O-3_TOPO
- Contact: Nicholas Nicholson (nicholas.nicholson@ec.europa.eu)
- Listed in library: 2025-06-12
- Last updated: 2024-03-21

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | OCD-O-3_TOPO |
| Description | International Classification of Diseases for Oncology, 3rd Revision, Topography |
| Format | OWL |
| Categories | Health, Human, Dysfunction |
| Groups |  |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 411 |
| Individuals | 0 |
| Properties | 3 |
| Max Depth | 4 |
| Max Child Count | 18 |
| Average Child Count | 5 |
| Classes With One Child | 20 |
| Classes With More Than 25 Children | 0 |
| Classes With No Definition | 383 |

## Projects using OCD-O-3_TOPO

No projects using OCD-O-3_TOPO

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Source: https://library.schematica.io/model/f052a2ae24004b87aa2ae0eda0f618ec