diff --git a/schala-lang/language/src/ast.rs b/schala-lang/language/src/ast.rs
index 8fc50c2ee..491776a 100644
--- a/schala-lang/language/src/ast.rs
+++ b/schala-lang/language/src/ast.rs
@@ -7,6 +7,18 @@ use crate::symbol_table::FullyQualifiedSymbolName;
 mod operators;
 pub use operators::*;
 
+/// An abstract identifier for an AST node
+#[derive(Debug, PartialEq, Clone)]
+pub struct ItemId {
+  idx: u32,
+}
+
+impl ItemId {
+  pub fn new(n: u32) -> ItemId {
+    ItemId { idx: n }
+  }
+}
+
 #[derive(Clone, Debug, PartialEq)]
 pub struct Meta<T> {
   pub n: T,