20160617 ICD-O Scope Definition Meeting

Attendees

• BAC, KG, DMO,
• Yong, et al.

TODO

• Determine computed scope of ICD-O by looking through current map and determining transitive closure. 

Agenda/Notes

• Scope of ICD-O
  • * * One level up in the hierarchy (malignancy by morphology, etc..) - 1700+ cases
  • * * many not mapped (if a concept has subconcept, the child may not be fully mapped to ICDO codes)
    •  * * * KEY area
  • * * double-check that existing map is correct (e.g. concept request for Orphanet - small cell carcinoma - specific subtype).
  • * * when look at morphology in SNOMED - this is a synonym.  In ICD-O, treated same as a synonym  - shouldn't be. should be sub-type.
  • * * Also issue with NOS - will have a specific name.
  • * * Limit scope for now - look at refset mapping - only retrieve transitive closure of descendants of those concepts.
  • * * Scope in SCT hierarchy - can identify a single concept to subsume everything (in scope)
    • * * * ISSUE: quite a few things in SCT that are out of scope in ICDO
• * Existing state of mapping (and style of mapping)
  • * * Are what is in map correct?
  • * * Are there things missing?
  • * * SCT has continued to change, but not the map. There have been only inactivations due to retired SNOMED concepts.
• * ICD-O - version 3.1 (2011) - not changed in 5 or 6 years
  • * * Need to get file from WHO - still asking around to get the file
  • * * Some weird data, including / and digits after /
  • * * include 6^th char? -
  •  * * No index needed
  • * * Preferred names and synonyms.
• * QA - number of issues in existing map that need to be developed.  Be able to see mapping side-by-side, and with SNOMED hierarchy (for QA)
• Consider migration to ICDO 3.2
• need to promote certain (SNOMEDCT) content for mapping

Questions

• Scope of SNOMED CT? A: for now, concepts in the map and transitive closure
• What is codable in ICD-O (e.g. rules)? A: TBD, but look at existing map 

Resources Needed

• ICD-O 3.1 (2011) data file
• SNOMED to ICD-O map (including refset id, etc.)
  • In SimpleMap refset file.
  • Map project metadata
    • Type of refset - Simple
    • Workflow path?
    • Need an option to map to nothing -> have a target code for this?
    • Yong-> map lead or specialist?

References/Links

• http://codes.iarc.fr/codegroup/2