
About GIVCS
- Determine the global loads of animal cancer and
- Identify and track changes in cancer burden between populations and species over time.

Our Mission

Who We Are
Animal Cancer Registries
Brazil
Portugal
Australia
Switzerland
Spain
United Kingdom
Italy
Chile
Take C.H.A.R.G.E. Canine Health and ReGistry Exchange
This recent initiative led by Dr. Craig Clifford wants to provide canine cancer data to help guide diagnosis and treatment decisions via the first national Canine Cancer Registry and Cancer Care Index.
Japan
USA
SLOVET
GIVCS Meetings
Vet-ICD-O
Veterinary - International Classification of Diseases - Oncology
Vet-ICD-O-1-canine
The GIVCS, in collaboration with the International Agency for Research on Cancer (IARC), developed the Vet-ICD-O-1 Canine Coding System, the first edition dedicated to canine neoplasms.
The system was structured in close alignment with the ICD-O-3.2 classification used in human oncology, ensuring conceptual and structural comparability between veterinary and human cancer registration frameworks.
The primary objective of Vet-ICD-O is to promote global harmonization, enabling veterinary cancer studies worldwide to adopt a standardized coding system and generate comparable epidemiological data.
Access the scientific article, supplementary materials, and recorded videos that provide a comprehensive explanation of the coding structure and practical guidance on its implementation.
General Structure
The Vet-ICD-O is organized into three main components:
- A comprehensive list of topography codes
- A complete list of morphology codes, including synonyms and related terms
- 12 system-based organization designed to facilitate coding
Morphology Codes
The morphology section includes 846 codes, comprising 534 preferred terms, of which 126 are newly created terms specific to canine tumours. In addition, the system includes 248 synonymous terms and 64 related terms.
Topography Codes
The topography list includes 335 codes, of which 26 are exclusive to canine tumours.
To ensure clear differentiation from existing human ICD-O codes, new veterinary-specific topography codes were created by adding a second digit after the decimal point.
System-based lists
To facilitate code identification and navigation, the system is organized into 12 chapters based on organ systems.
Vet-ICD-O-2 in Development
The GIVCS Coding Group is currently developing Vet-ICD-O-2, the next edition of the Veterinary International Classification of Diseases for Oncology.
This updated version will expand species coverage, including revised and updated terminology for dogs, as well as the integration of codes for cats, horses, pigs, and small ruminants.
Vet-ICD-O-2 will be fully aligned with the newly released ICD-O-4 classification in human medicine, ensuring international harmonization and strengthening comparative oncology research within a One Health framework.
Further updates will be announced soon. Stay tuned.
Groups with similar objectives
Veterinary Cancer Guidelines and Protocol
The mission of VCGP is to improve care for animals with cancer through
standardization of tumor evaluation and reporting.







