diff --git a/model/pipeline/src/main/proto/org/apache/beam/model/pipeline/v1/metrics.proto b/model/pipeline/src/main/proto/org/apache/beam/model/pipeline/v1/metrics.proto
index cc3144e5be22..e2eef855ee69 100644
--- a/model/pipeline/src/main/proto/org/apache/beam/model/pipeline/v1/metrics.proto
+++ b/model/pipeline/src/main/proto/org/apache/beam/model/pipeline/v1/metrics.proto
@@ -378,25 +378,6 @@ message MonitoringInfoSpecs {
         value: "URN utilized to report user metric."
       }]
     }];
-
-    // Represents per worker metrics 
-    PER_WORKER_LATENCY_METRIC= 23 [(monitoring_info_spec) = {
-      urn: "beam:metrics:per_worker_metric:v1",
-      type: "beam:metrics:per_worker_histogram_int64:v1",
-      required_labels: [
-        "PTRANSFORM"
-      ],
-      annotations: [
-        {
-          key: "description",
-          value: "Histogram counts for request latencies made to IO service APIs to batch read or write elements."
-        },
-        {
-          key: "units",
-          value: "Milliseconds"
-        }
-      ]
-    }];
   }
 }
 
diff --git a/runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MetricsContainerImpl.java b/runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MetricsContainerImpl.java
index 551550012bf5..12a26ff8a390 100644
--- a/runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MetricsContainerImpl.java
+++ b/runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MetricsContainerImpl.java
@@ -401,7 +401,7 @@ public MetricUpdates getUpdates() {
     return metricToMonitoringMetadata(
         metricKey,
         MonitoringInfoConstants.TypeUrns.PER_WORKER_HISTOGRAM_TYPE,
-        MonitoringInfoConstants.Urns.PER_WORKER_LATENCY_METRIC);
+        MonitoringInfoConstants.Urns.USER_PER_WORKER_HISTOGRAM);
   }
 
   /**
@@ -656,7 +656,7 @@ public void update(Iterable<MonitoringInfo> monitoringInfos) {
           break;
 
         case PER_WORKER_HISTOGRAM_TYPE:
-          updateForPerWorkerHistogramInt64(monitoringInfo); // use type, and not urn info
+          updateForPerWorkerHistogramInt64(monitoringInfo);
           break;
         default:
           LOG.warn("Unsupported metric type {}", monitoringInfo.getType());
@@ -830,6 +830,7 @@ public static MetricsContainerImpl deltaContainer(
       deltaValueCell.incTopBucketCount(
           currValue.getTopBucketCount() - prevValue.getTopBucketCount());
     }
+    // Do the same for perWorkerHistograms
     for (Map.Entry<KV<MetricName, HistogramData.BucketType>, HistogramCell> cell :
         curr.perWorkerHistograms.entries()) {
       HistogramData.BucketType bt = cell.getKey().getValue();
diff --git a/runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MonitoringInfoEncodings.java b/runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MonitoringInfoEncodings.java
index c818e422f5e5..3c6441a52e5a 100644
--- a/runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MonitoringInfoEncodings.java
+++ b/runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MonitoringInfoEncodings.java
@@ -42,7 +42,7 @@
 import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.Sets;
 import org.joda.time.Instant;
 
-// TODO(naireenhussain): Refactor out DataflowHistogramValue to be runner agnostic, and rename to
+// TODO(#33093): Refactor out DataflowHistogramValue to be runner agnostic, and rename to
 // remove Dataflow reference.
 
 /** A set of functions used to encode and decode common monitoring info types. */