diff --git a/docs/csharp/language-reference/toc.yml b/docs/csharp/language-reference/toc.yml
index c834a3171085c..50805b14714f9 100644
--- a/docs/csharp/language-reference/toc.yml
+++ b/docs/csharp/language-reference/toc.yml
@@ -921,8 +921,6 @@ items:
       href: ../misc/cs0191.md
     - name: CS0198
       href: ../misc/cs0198.md
-    - name: CS0200
-      href: ../misc/cs0200.md
     - name: CS0201
       href: ./compiler-messages/cs0201.md
     - name: CS0202
@@ -1049,8 +1047,6 @@ items:
       href: ../misc/cs0463.md
     - name: CS0468
       href: ../misc/cs0468.md
-    - name: CS0470
-      href: ./compiler-messages/interface-implementation-errors.md
     - name: CS0471
       href: ../misc/cs0471.md
     - name: CS0500
@@ -1095,20 +1091,12 @@ items:
       href: ../misc/cs0534.md
     - name: CS0537
       href: ../misc/cs0537.md
-    - name: CS0538
-      href: ./compiler-messages/interface-implementation-errors.md
-    - name: CS0539
-      href: ./compiler-messages/interface-implementation-errors.md
-    - name: CS0541
-      href: ./compiler-messages/interface-implementation-errors.md
     - name: CS0542
       href: ../misc/cs0542.md
     - name: CS0543
       href: ../misc/cs0543.md
     - name: CS0544
       href: ../misc/cs0544.md
-    - name: CS0545
-      href: ./compiler-messages/cs0545.md
     - name: CS0546
       href: ../misc/cs0546.md
     - name: CS0547
@@ -1117,14 +1105,10 @@ items:
       href: ../misc/cs0548.md
     - name: CS0549
       href: ../misc/cs0549.md
-    - name: CS0551
-      href: ./compiler-messages/interface-implementation-errors.md
     - name: CS0569
       href: ../misc/cs0569.md
     - name: CS0570
       href: ./compiler-messages/cs0570.md
-    - name: CS0571
-      href: ./compiler-messages/cs0571.md
     - name: CS0572
       href: ../misc/cs0572.md
     - name: CS0573
@@ -1213,12 +1197,6 @@ items:
       href: ../misc/cs0690.md
     - name: CS0692
       href: ../misc/cs0692.md
-    - name: CS0694
-      href: ./compiler-messages/generic-type-parameters-errors.md
-    - name: CS0695
-      href: ./compiler-messages/generic-type-parameters-errors.md
-    - name: CS0698
-      href: ./compiler-messages/generic-type-parameters-errors.md
     - name: CS0699
       href: ../misc/cs0699.md
     - name: CS0701
@@ -1313,8 +1291,6 @@ items:
       href: ../misc/cs0836.md
     - name: CS0837
       href: ../misc/cs0837.md
-    - name: CS0840
-      href: ./compiler-messages/cs0840.md
     - name: CS0841
       href: ../misc/cs0841.md
     - name: CS0842
@@ -1335,8 +1311,6 @@ items:
       href: ../misc/cs1010.md
     - name: CS1013
       href: ../misc/cs1013.md
-    - name: CS1014
-      href: ../misc/cs1014.md
     - name: CS1015
       href: ../misc/cs1015.md
     - name: CS1017
@@ -1363,8 +1337,6 @@ items:
       href: ../misc/cs1036.md
     - name: CS1041
       href: ../misc/cs1041.md
-    - name: CS1043
-      href: ../misc/cs1043.md
     - name: CS1044
       href: ../misc/cs1044.md
     - name: CS1055
@@ -1519,8 +1491,6 @@ items:
       href: ../misc/cs1620.md
     - name: CS1630
       href: ../misc/cs1630.md
-    - name: CS1637
-      href: ./compiler-messages/iterator-yield.md
     - name: CS1638
       href: ../misc/cs1638.md
     - name: CS1639
@@ -1751,8 +1721,6 @@ items:
       href: ./compiler-messages/cs8140.md
     - name: CS8141
       href: ./compiler-messages/cs8141.md
-    - name: CS8145
-      href: ./compiler-messages/cs8145.md
     - name: CS8146
       href: ./compiler-messages/cs8146.md
     - name: CS8147
@@ -1823,8 +1791,6 @@ items:
       href: ./compiler-messages/cs8803.md
     - name: CS8515
       href: ./compiler-messages/cs8515.md
-    - name: CS9036
-      href: ./compiler-messages/cs9036.md
     - name: CS9043
       href: ./compiler-messages/cs9043.md
   - name: Level 1 warning messages