diff --git a/CHANGELOG.md b/CHANGELOG.md
index acad43f268..d1f6fa99df 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -32,6 +32,7 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 - [#6212](https://github.com/thanos-io/thanos/pull/6212) Query-Frontend: Disable scalar for vertical sharding.
 - [#6107](https://github.com/thanos-io/thanos/pull/6082) Change default user id in container image from 0(root) to 1001
 - [#6228](https://github.com/thanos-io/thanos/pull/6228) Conditionally generate debug messages in ProxyStore to avoid memory bloat.
+- [#6231](https://github.com/thanos-io/thanos/pull/6231) mixins: Add code/grpc-code dimension to error widgets.
 
 ### Removed
 
diff --git a/examples/dashboards/overview.json b/examples/dashboards/overview.json
index 2d274bac3c..29bd665535 100644
--- a/examples/dashboards/overview.json
+++ b/examples/dashboards/overview.json
@@ -161,10 +161,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(http_requests_total{handler=\"query\",code=~\"5..\"}[$interval])) / sum by (job) (rate(http_requests_total{handler=\"query\"}[$interval]))",
+                     "expr": "sum by (job, code) (rate(http_requests_total{handler=\"query\",code=~\"5..\"}[$interval])) / ignoring (code) group_left() sum by (job) (rate(http_requests_total{handler=\"query\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -466,10 +465,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(http_requests_total{handler=\"query_range\",code=~\"5..\"}[$interval])) / sum by (job) (rate(http_requests_total{handler=\"query_range\"}[$interval]))",
+                     "expr": "sum by (job, code) (rate(http_requests_total{handler=\"query_range\",code=~\"5..\"}[$interval])) / ignoring (code) group_left() sum by (job) (rate(http_requests_total{handler=\"query_range\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -823,10 +821,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",grpc_type=\"unary\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{grpc_type=\"unary\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",grpc_type=\"unary\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{grpc_type=\"unary\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -1180,10 +1177,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",grpc_type=\"unary\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{grpc_type=\"unary\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",grpc_type=\"unary\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{grpc_type=\"unary\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -1485,10 +1481,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(http_requests_total{handler=\"receive\",code=~\"5..\"}[$interval])) / sum by (job) (rate(http_requests_total{handler=\"receive\"}[$interval]))",
+                     "expr": "sum by (job, code) (rate(http_requests_total{handler=\"receive\",code=~\"5..\"}[$interval])) / ignoring (code) group_left() sum by (job) (rate(http_requests_total{handler=\"receive\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
diff --git a/examples/dashboards/query-frontend.json b/examples/dashboards/query-frontend.json
index ee46320359..0502d378b9 100644
--- a/examples/dashboards/query-frontend.json
+++ b/examples/dashboards/query-frontend.json
@@ -242,10 +242,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"query-frontend\",code=~\"5..\"}[$interval])) / sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"query-frontend\"}[$interval]))",
+                     "expr": "sum by (job, code) (rate(http_requests_total{job=~\"$job\", handler=\"query-frontend\",code=~\"5..\"}[$interval])) / ignoring (code) group_left() sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"query-frontend\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
diff --git a/examples/dashboards/query.json b/examples/dashboards/query.json
index f25474aed0..8a5b27de51 100644
--- a/examples/dashboards/query.json
+++ b/examples/dashboards/query.json
@@ -145,10 +145,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"query\",code=~\"5..\"}[$interval])) / sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"query\"}[$interval]))",
+                     "expr": "sum by (job, code) (rate(http_requests_total{job=~\"$job\", handler=\"query\",code=~\"5..\"}[$interval])) / ignoring (code) group_left() sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"query\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -450,10 +449,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"query_range\",code=~\"5..\"}[$interval])) / sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"query_range\"}[$interval]))",
+                     "expr": "sum by (job, code) (rate(http_requests_total{job=~\"$job\", handler=\"query_range\",code=~\"5..\"}[$interval])) / ignoring (code) group_left() sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"query_range\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -807,10 +805,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_client_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\"}[$interval])) / sum by (job) (rate(grpc_client_handled_total{job=~\"$job\", grpc_type=\"unary\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_client_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_client_handled_total{job=~\"$job\", grpc_type=\"unary\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -1164,10 +1161,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_client_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"server_stream\"}[$interval])) / sum by (job) (rate(grpc_client_handled_total{job=~\"$job\", grpc_type=\"server_stream\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_client_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"server_stream\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_client_handled_total{job=~\"$job\", grpc_type=\"server_stream\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
diff --git a/examples/dashboards/receive.json b/examples/dashboards/receive.json
index 1f37c9d563..39246cb054 100644
--- a/examples/dashboards/receive.json
+++ b/examples/dashboards/receive.json
@@ -145,10 +145,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"receive\",code=~\"5..\"}[$interval])) / sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"receive\"}[$interval]))",
+                     "expr": "sum by (job, code) (rate(http_requests_total{job=~\"$job\", handler=\"receive\",code=~\"5..\"}[$interval])) / ignoring (code) group_left() sum by (job) (rate(http_requests_total{job=~\"$job\", handler=\"receive\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -1632,10 +1631,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\", grpc_method=\"RemoteWrite\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"unary\", grpc_method=\"RemoteWrite\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\", grpc_method=\"RemoteWrite\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"unary\", grpc_method=\"RemoteWrite\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -1989,10 +1987,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\", grpc_method!=\"RemoteWrite\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"unary\", grpc_method!=\"RemoteWrite\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\", grpc_method!=\"RemoteWrite\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"unary\", grpc_method!=\"RemoteWrite\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -2346,10 +2343,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"server_stream\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"server_stream\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"server_stream\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"server_stream\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
diff --git a/examples/dashboards/rule.json b/examples/dashboards/rule.json
index 569a5aaeec..cb1250f7cc 100644
--- a/examples/dashboards/rule.json
+++ b/examples/dashboards/rule.json
@@ -966,10 +966,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"unary\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"unary\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -1323,10 +1322,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"server_stream\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"server_stream\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"server_stream\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"server_stream\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
diff --git a/examples/dashboards/sidecar.json b/examples/dashboards/sidecar.json
index 26f3f5db05..0ab12060a1 100644
--- a/examples/dashboards/sidecar.json
+++ b/examples/dashboards/sidecar.json
@@ -197,10 +197,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"unary\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"unary\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -553,10 +552,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"server_stream\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"server_stream\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"server_stream\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"server_stream\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
diff --git a/examples/dashboards/store.json b/examples/dashboards/store.json
index 7f3b614cfb..031c6b58c1 100644
--- a/examples/dashboards/store.json
+++ b/examples/dashboards/store.json
@@ -197,10 +197,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"unary\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"unary\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"unary\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
@@ -554,10 +553,9 @@
                "steppedLine": false,
                "targets": [
                   {
-                     "expr": "sum by (job) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"server_stream\"}[$interval])) / sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"server_stream\"}[$interval]))",
+                     "expr": "sum by (job, grpc_code) (rate(grpc_server_handled_total{grpc_code=~\"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss\",job=~\"$job\", grpc_type=\"server_stream\"}[$interval])) / ignoring (grpc_code) group_left() sum by (job) (rate(grpc_server_handled_total{job=~\"$job\", grpc_type=\"server_stream\"}[$interval]))",
                      "format": "time_series",
                      "intervalFactor": 2,
-                     "legendFormat": "error",
                      "step": 10
                   }
                ],
diff --git a/mixin/lib/thanos-grafana-builder/builder.libsonnet b/mixin/lib/thanos-grafana-builder/builder.libsonnet
index ecbc61e69c..39cedb404d 100644
--- a/mixin/lib/thanos-grafana-builder/builder.libsonnet
+++ b/mixin/lib/thanos-grafana-builder/builder.libsonnet
@@ -78,6 +78,24 @@ local utils = import '../utils.libsonnet';
     ],
   },
 
+  qpsErrTotalPerLabelPanel(selectorErr, selectorTotal, dimensions, perLabel):: {
+    local errExpr = 'sum by (%s, %s) (rate(%s[$interval]))' % [dimensions, perLabel, selectorErr],
+    local totalExpr = 'sum by (%s) (rate(%s[$interval]))' % [dimensions, selectorTotal],
+
+    aliasColors: {
+      'error': '#E24D42',
+    },
+    targets: [
+      {
+        expr: '%s / ignoring (%s) group_left() %s' % [errExpr, perLabel, totalExpr],
+        format: 'time_series',
+        intervalFactor: 2,
+        step: 10,
+      },
+    ],
+    yaxes: $.yaxes({ format: 'percentunit' }),
+  } + $.stack,
+
   qpsErrTotalPanel(selectorErr, selectorTotal, dimensions):: {
     local expr(selector) = 'sum by (%s) (rate(%s[$interval]))' % [dimensions, selector],
 
diff --git a/mixin/lib/thanos-grafana-builder/grpc.libsonnet b/mixin/lib/thanos-grafana-builder/grpc.libsonnet
index 6c58ad262a..62d1ae0d41 100644
--- a/mixin/lib/thanos-grafana-builder/grpc.libsonnet
+++ b/mixin/lib/thanos-grafana-builder/grpc.libsonnet
@@ -37,9 +37,10 @@ local utils = import '../utils.libsonnet';
   } + $.stack,
 
   grpcErrorsPanel(metric, selector, dimensions)::
-    $.qpsErrTotalPanel(
+    $.qpsErrTotalPerLabelPanel(
       '%s{grpc_code=~"Unknown|ResourceExhausted|Internal|Unavailable|DataLoss",%s}' % [metric, selector],
       '%s{%s}' % [metric, selector],
-      dimensions
+      dimensions,
+      'grpc_code',
     ),
 }
diff --git a/mixin/lib/thanos-grafana-builder/http.libsonnet b/mixin/lib/thanos-grafana-builder/http.libsonnet
index e21caf941d..f3554411f8 100644
--- a/mixin/lib/thanos-grafana-builder/http.libsonnet
+++ b/mixin/lib/thanos-grafana-builder/http.libsonnet
@@ -25,9 +25,10 @@ local utils = import '../utils.libsonnet';
   } + $.stack,
 
   httpErrPanel(metric, selector, dimensions)::
-    $.qpsErrTotalPanel(
+    $.qpsErrTotalPerLabelPanel(
       '%s{%s,code=~"5.."}' % [metric, selector],
       '%s{%s}' % [metric, selector],
-      dimensions
+      dimensions,
+      'code',
     ),
 }