Hi, not knowing the context, here’s what I did to come up with my below suggestion.
89001000009106, clearly a SNOMED-code.
But not in international release.
Looked at 1000009 here: https://cis.ihtsdotools.org/info/index.html?home=namespaces
This shows it’s VetMed.
Had downloaded that extension, and saw the error was there too (so not a copy-paste error).
So either you approach info@snomed.org, as mentioned on the site mentioned earlier.
Or, contact the owner mentioned in previous versions of the list found here: https://confluence.ihtsdotools.org/download/attachments/6160816/SNOMED_CT_Namespace_Registry%20-%20OFFICIAL%2020141021.pdf?version=1&modificationDate=1426061583000&api=v2&download=true
That gives the answer:
Email: jwilcke@vt.edu
Best, Ronald