diff --git a/vpd-manager/reader_impl.hpp b/vpd-manager/reader_impl.hpp
index d9ceafe..17cfc75 100644
--- a/vpd-manager/reader_impl.hpp
+++ b/vpd-manager/reader_impl.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "types.hpp"
+
 namespace openpower
 {
 namespace vpd
@@ -12,8 +14,6 @@
 /** @class ReaderImpl
  *  @brief Implements functionalities related to reading of VPD related data
  *  from the system.
- *
- *  A parsed vpd inventory json file is required to construct the class.
  */
 class ReaderImpl
 {
@@ -24,6 +24,18 @@
     ReaderImpl(ReaderImpl&&) = delete;
     ReaderImpl& operator=(ReaderImpl&&) = delete;
     ~ReaderImpl() = default;
+
+    /** @brief An API to expand a given unexpanded location code.
+     *  @param[in] locationCode - unexpanded location code.
+     *  @param[in] nodeNumber - node on which we are looking for location code.
+     *  @param[in] frusLocationCode - mapping of inventory path and location
+     * code.
+     *  @return Expanded location code.
+     */
+    std::string getExpandedLocationCode(
+        const std::string& locationCode, const uint16_t& nodeNumber,
+        const inventory::LocationCodeMap& frusLocationCode) const;
+
 }; // class ReaderImpl
 
 } // namespace reader