Medical Action Ontology

Last uploaded: January 15, 2026

Details

Acronym	MAXO
Visibility	Public
Description	The Medical Action Ontology (MAxO) provides a structured vocabulary for medical procedures, interventions, therapies, and treatments for disease with an emphasis on rare disease (RD). It is often difficult to find relevant clinical literature about strategies to manage RD patients. Responding to this need, MAxO provides a vocabulary to annotate diseases and phenotypes with recommended treatments and interventions., An ontology to represent medically relevant actions, procedures, and recommendations.
Status	Production
Format	OWL
Groups	OBO Foundry

Contact	Leigh Carmody ([email protected])
Creation date	January 15, 2026
Deprecated	false See more...
Homepage	https://github.com/monarch-initiative/MAxO See more...
License
Object creation date property	http://purl.org/dc/elements/1.1/created http://purl.org/dc/elements/1.1/created
Object modification date property	http://purl.org/dc/elements/1.1/modified http://purl.org/dc/elements/1.1/modified
Submission date	January 15, 2026
Version IRI	http://purl.obolibrary.org/obo/maxo/releases/2026-01-15/maxo.owl http://purl.obolibrary.org/obo/maxo/releases/2026-01-15/maxo.owl
Version information	2026-01-15 See more...
uri	http://purl.obolibrary.org/obo/maxo.owl http://purl.obolibrary.org/obo/maxo.owl

Version	Released	Uploaded	Downloads
2026-01-15 (Parsed, Indexed, Metrics, Annotator)	01/15/2026	01/15/2026	OWL \| CSV \| RDF/XML \| Diff
2025-04-24 (Archived)	04/24/2025	04/24/2025	OWL \| Diff
2024-07-29 (Archived)	07/29/2024	07/29/2024	OWL \| Diff
2024-05-24 (Archived)	05/24/2024	05/24/2024	OWL \| Diff
2024-05-07 (Archived)	05/09/2024	05/09/2024	OWL \| Diff
2024-02-05 (Archived)	02/05/2024	02/05/2024	OWL \| Diff
2023-12-01 (Archived)	12/01/2023	12/01/2023	OWL \| Diff
2023-10-03 (Archived)	10/03/2023	10/03/2023	OWL \| Diff
2023-06-06 (Archived)	06/06/2023	06/06/2023	OWL \| Diff
2023-05-17 (Archived)	05/17/2023	05/17/2023	OWL \| Diff
2023-05-02 (Archived)	05/02/2023	05/02/2023	OWL \| Diff
2023-04-18 (Archived)	04/18/2023	04/18/2023	OWL \| Diff
2023-04-13 (Archived)	04/13/2023	04/13/2023	OWL \| Diff
2023-03-09 (Archived)	03/13/2023	03/13/2023	OWL \| Diff
2023-02-23 (Archived)	02/23/2023	02/23/2023	OWL \| Diff
2023-02-19 (Archived)	02/20/2023	02/20/2023	OWL \| Diff
2022-12-19 (Archived)	12/19/2022	12/19/2022	OWL \| Diff
2022-12-09 (Archived)	12/09/2022	12/09/2022	OWL \| Diff
2022-11-21 (Archived)	11/22/2022	11/22/2022	OWL \| Diff
2022-09-07 (Archived)	09/23/2022	09/23/2022	OWL \| Diff
2022-08-22 (Archived)	08/29/2022	08/29/2022	OWL \| Diff
2022-06-23 (Archived)	06/24/2022	06/24/2022	OWL \| Diff
2022-06-22 (Archived)	06/23/2022	06/23/2022	OWL \| Diff
2022-06-01 (Archived)	06/01/2022	06/01/2022	OWL \| Diff
2022-05-06 (Archived)	05/06/2022	05/06/2022	OWL \| Diff
2022-04-11 (Archived)	04/11/2022	04/11/2022	OWL \| Diff
2022-04-08 (Archived)	04/08/2022	04/08/2022	OWL \| Diff
2022-03-31 (Archived)	03/31/2022	03/31/2022	OWL \| Diff
2022-03-29 (Archived)	03/29/2022	03/29/2022	OWL \| Diff
2022-03-28 (Archived)	03/28/2022	03/28/2022	OWL \| Diff
2022-03-23 (Archived)	03/23/2022	03/23/2022	OWL \| Diff
2021-08-19 (Archived)	09/03/2021	09/03/2021	OWL \| Diff
2021-08-16 (Archived)	08/16/2021	08/16/2021	OWL \| Diff
2021-08-13 (Archived)	08/13/2021	08/13/2021	OWL \| Diff
2021-08-10 (Archived)	08/10/2021	08/10/2021	OWL \| Diff
2021-06-11 (Archived)	06/29/2021	06/29/2021	OWL \| Diff
2021-03-22 (Archived)	03/22/2021	03/22/2021	OWL \| Diff
2021-03-17 (Archived)	03/18/2021	03/18/2021	OWL \| Diff
2021-02-25 (Archived)	02/25/2021	02/25/2021	OWL \| Diff
2021-02-22 (Archived)	02/24/2021	02/24/2021	OWL \| Diff
2021-02-09 (Archived)	02/09/2021	02/09/2021	OWL \| Diff
2020-12-10 (Archived)	12/10/2020	12/10/2020	OWL \| Diff
2020-11-30 (Archived)	12/07/2020	12/07/2020	OWL \| Diff
2020-11-20 (Archived)	11/20/2020	11/20/2020	OWL \| Diff
2020-11-18 (Archived)	11/19/2020	11/19/2020	OWL \| Diff
2020-11-16 (Archived)	11/16/2020	11/16/2020	OWL \| Diff
2020-11-13 (Archived)	11/13/2020	11/13/2020	OWL \| Diff
2020-10-26 (Archived)	10/26/2020	10/26/2020	OWL \| Diff
2020-10-22 (Archived)	10/22/2020	10/22/2020	OWL \| Diff
unknown (Archived)	09/30/2020	09/30/2020	OWL \| Diff
unknown (Archived)	07/28/2020	07/28/2020	OWL \| Diff
unknown (Archived)	07/14/2020	07/14/2020	OWL \| Diff
unknown (Archived)	06/25/2020	06/25/2020	OWL \| Diff
unknown (Archived)	06/15/2020	06/15/2020	OWL \| Diff
unknown (Archived)	06/12/2020	06/12/2020	OWL \| Diff
unknown (Archived)	05/14/2020	05/14/2020	OWL \| Diff
unknown (Archived)	04/14/2020	05/12/2020	OWL
more...

No views of MAXO available

Classes	7,120
Individuals	0
Properties	212
Maximum depth	33
Maximum number of children	198
Average number of children	2
Classes with a single child	1,834
Classes with more than 25 children	38
Classes with no definition	770

No projects using MAXO