Template:PreICD10 dx
This page doesn't show anything, it just sets Property:Has ICD10NewArticleLink which is then displayed by Template:DX tag.
add following to article:
{{PreICD10 dx | NewDxArticle = wiki article of new dx }}
Property "Has ICD10NewArticleLink" (as page type) with input value "{{{NewDxArticle}}}" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.