Developed and co-authored a feature for the open-telemetry/opentelemetry-dotnet-contrib repository that implements server-side gRPC span status code mapping in alignment with OpenTelemetry semantic conventions. This work focused on improving telemetry fidelity and observability for .NET gRPC services by clarifying which status codes are treated as errors and ensuring accurate span labeling. The implementation involved updating C# helper methods and introducing comprehensive unit tests to validate consistent behavior and reduce telemetry drift. Collaboration with cross-team contributors ensured the solution addressed production monitoring needs, ultimately enhancing the reliability of SRE dashboards and supporting proactive issue detection in backend environments.