HemOncKB: Oncology Components and Conditions Mapped to OMOP Standards

HemOncKB CC BY subset provides a controlled vocabulary for hematology and oncology, mapping medical components and conditions to standard coding systems like RxNorm and ICD-10-CM. Developed by Jeremy Warner at HemOnc Dataverse and updated in March 2026, it follows the OMOP Common Data Model format for relational medical data.

Use Cases

• Normalizing oncology drug data using RxNorm and NDC mappings
• Harmonizing cancer diagnosis codes between ICD-10-CM and OncoTree
• Implementing hierarchical clinical queries within an OMOP-compliant database

Strengths

• Standardized to the OMOP Common Data Model format
• Mappings provided for over 10 distinct medical coding systems
• Includes specialized oncology hierarchies like OncoTree and ICD-O-3

Limitations

• Restricted to a subset of the full knowledge base
• Lack of explicit record counts or file size in metadata

Provenance

Source

Jeremy Warner, HemOnc Dataverse

Collection Method

Expert-curated medical knowledge base

Freshness

Last updated March 2026.

Geography

Global