For example:
``` /I Certain infectious and parasitic diseases/xxx => /ICD10/I Certain infectious and parasitic diseases/xxx /1A00–1H0Z Certain infectious or parasitic diseases/xxx => /ICD11/1A00–1H0Z Certain infectious or parasitic diseases/xxx ``` I think this have two benefit: 1. When user install two similar modules (maybe more), with ICD10/11 prefix will let categories UI looks well 2. When user need write different diseases module map feature, this string will useful --
