diff --git a/tools/analysis/diagnostic.go b/tools/analysis/diagnostic.go
index 2eb21cc85d..8d1bee9ef0 100644
--- a/tools/analysis/diagnostic.go
+++ b/tools/analysis/diagnostic.go
@@ -33,6 +33,8 @@ type Diagnostic struct {
 	Category         string
 	Message          string
 	SecondaryMessage string
+	Code             string // Diagnostic code (e.g. "unused-variable")
+	URL              string // URL to documentation
 	SuggestedFixes   []SuggestedFix
 	ast.Range
 }