Resources

Tip

The RD-CDM paper has been published in Nature Scientific Data. Read it here.

All resources below always reflect the latest released version of the RD-CDM. The version is embedded in every file as rd_cdm_version and rd_cdm_date — no need to check the filename.

To access a specific older version, install the corresponding PyPI release (pip install rd-cdm==2.0.2) or browse the GitHub tags.

---

Schema

The LinkML schema is the single source of truth for the data model structure and version:

• RD-CDM LinkML schema

See LinkML for documentation on how to use it.

---

Latest RD-CDM — Combined Files

The merged instance file contains all code systems, data elements, and value sets in a single file, stamped with rd_cdm_version and rd_cdm_date:

• RD-CDM merged YAML

• RD-CDM combined JSON

• RD-CDM combined CSV

Download all files as a ZIP archive from GitHub:

• Download latest release as ZIP

• Browse all tagged releases

---

Latest RD-CDM — Individual Components

Code Systems

• Code Systems YAML

• Code Systems JSON

• Code Systems CSV

Data Elements

• Data Elements YAML

• Data Elements JSON

• Data Elements CSV

Value Sets

• Value Sets YAML

• Value Sets JSON

• Value Sets CSV

---

RD-CDM v2.0.0 (outdated)

The original v2.0.0 release is available on Figshare and as a GitHub release.

Excel Table

• RD-CDM v2.0.0 Excel Table

JSON Files

• Entire RD-CDM v2.0.0 JSON

• Code Systems v2.0.0 JSON

• Data Elements v2.0.0 JSON

• Value Sets v2.0.0 JSON

CSV Files

• Combined RD-CDM v2.0.0 CSV

• Code Systems v2.0.0 CSV

• Data Elements v2.0.0 CSV

• Value Sets v2.0.0 CSV

For additional details see Background.