We received the following questions from a datasource in Estonia:
1) I84 - Haemorrhoids. Seems that this code is missing from ICD-10 by now (was valid in ICD-10 Version:2008 and is a still valid diagnosis code currently in Estonia). I84 is present in CONCEPTS table, but is not valid anymore. Probably we should map this to K64?
-> A suggestion would be to still map to the 'invalid' ICD-10 code since there is a mapping to the standard code which is still valid?
2) K35.9 - similar to previous, seems that this code is not a valid ICD-10 by now (again, was valid in ICD-10 Version:2008), probably we can generalize this to K35.8 "Acute appendicitis, other and unspecified".
-> same story.
3) J10-J18 (a range) - Influenza and pneumonia - in old ICD-10 version the range was J10-J18. However, none of these ranges are defined in CONCEPTS table.
-> seems to correspond however to a standard SNOMED concept (concept ID 256723) so maybe map to this code without a source code?
@Christian_Reich, @gregk do you agree witht the proposed solutions?