diff --git a/internal/transform/operation.go b/internal/transform/operation.go
index 30a06e70..15fb699a 100644
--- a/internal/transform/operation.go
+++ b/internal/transform/operation.go
@@ -1082,7 +1082,7 @@ func extractOperationDetails(operation xdr.Operation, transaction ingest.LedgerT
 			transactionEnvelope := getTransactionV1Envelope(transaction.Envelope)
 			details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
 			details["contract_id"] = contractId
-			details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+			details["contract_code_hash"] = nil
 
 			details["parameters"], details["parameters_decoded"] = serializeParameters(args)
 			details["parameters_json"], details["parameters_json_decoded"], err = serializeScValArray(args)
@@ -1103,7 +1103,7 @@ func extractOperationDetails(operation xdr.Operation, transaction ingest.LedgerT
 			transactionEnvelope := getTransactionV1Envelope(transaction.Envelope)
 			details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
 			details["contract_id"] = contractIdFromTxEnvelope(transactionEnvelope)
-			details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+			details["contract_code_hash"] = nil
 
 			preimageTypeMap := switchContractIdPreimageType(args.ContractIdPreimage)
 			for key, val := range preimageTypeMap {
@@ -1115,7 +1115,7 @@ func extractOperationDetails(operation xdr.Operation, transaction ingest.LedgerT
 			details["type"] = "upload_wasm"
 			transactionEnvelope := getTransactionV1Envelope(transaction.Envelope)
 			details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
-			details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+			details["contract_code_hash"] = nil
 		case xdr.HostFunctionTypeHostFunctionTypeCreateContractV2:
 			var err error
 			args := op.HostFunction.MustCreateContractV2()
@@ -1124,7 +1124,7 @@ func extractOperationDetails(operation xdr.Operation, transaction ingest.LedgerT
 			transactionEnvelope := getTransactionV1Envelope(transaction.Envelope)
 			details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
 			details["contract_id"] = contractIdFromTxEnvelope(transactionEnvelope)
-			details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+			details["contract_code_hash"] = nil
 
 			details["parameters"], details["parameters_decoded"] = serializeParameters(args.ConstructorArgs)
 			details["parameters_json"], details["parameters_json_decoded"], err = serializeScValArray(args.ConstructorArgs)
@@ -1149,14 +1149,14 @@ func extractOperationDetails(operation xdr.Operation, transaction ingest.LedgerT
 		transactionEnvelope := getTransactionV1Envelope(transaction.Envelope)
 		details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
 		details["contract_id"] = contractIdFromTxEnvelope(transactionEnvelope)
-		details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+		details["contract_code_hash"] = nil
 	case xdr.OperationTypeRestoreFootprint:
 		details["type"] = "restore_footprint"
 
 		transactionEnvelope := getTransactionV1Envelope(transaction.Envelope)
 		details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
 		details["contract_id"] = contractIdFromTxEnvelope(transactionEnvelope)
-		details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+		details["contract_code_hash"] = nil
 	default:
 		return details, fmt.Errorf("unknown operation type: %s", operation.Body.Type.String())
 	}
@@ -1704,7 +1704,7 @@ func (operation *transactionOperationWrapper) Details() (map[string]interface{},
 			transactionEnvelope := getTransactionV1Envelope(operation.transaction.Envelope)
 			details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
 			details["contract_id"] = contractId
-			details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+			details["contract_code_hash"] = nil
 
 			details["parameters"], details["parameters_decoded"] = serializeParameters(args)
 			details["parameters_json"], details["parameters_json_decoded"], err = serializeScValArray(args)
@@ -1725,7 +1725,7 @@ func (operation *transactionOperationWrapper) Details() (map[string]interface{},
 			transactionEnvelope := getTransactionV1Envelope(operation.transaction.Envelope)
 			details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
 			details["contract_id"] = contractIdFromTxEnvelope(transactionEnvelope)
-			details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+			details["contract_code_hash"] = nil
 
 			preimageTypeMap := switchContractIdPreimageType(args.ContractIdPreimage)
 			for key, val := range preimageTypeMap {
@@ -1737,7 +1737,7 @@ func (operation *transactionOperationWrapper) Details() (map[string]interface{},
 			details["type"] = "upload_wasm"
 			transactionEnvelope := getTransactionV1Envelope(operation.transaction.Envelope)
 			details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
-			details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+			details["contract_code_hash"] = nil
 		case xdr.HostFunctionTypeHostFunctionTypeCreateContractV2:
 			var err error
 			args := op.HostFunction.MustCreateContractV2()
@@ -1746,7 +1746,7 @@ func (operation *transactionOperationWrapper) Details() (map[string]interface{},
 			transactionEnvelope := getTransactionV1Envelope(operation.transaction.Envelope)
 			details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
 			details["contract_id"] = contractIdFromTxEnvelope(transactionEnvelope)
-			details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+			details["contract_code_hash"] = nil
 
 			details["parameters"], details["parameters_decoded"] = serializeParameters(args.ConstructorArgs)
 			details["parameters_json"], details["parameters_json_decoded"], err = serializeScValArray(args.ConstructorArgs)
@@ -1771,14 +1771,14 @@ func (operation *transactionOperationWrapper) Details() (map[string]interface{},
 		transactionEnvelope := getTransactionV1Envelope(operation.transaction.Envelope)
 		details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
 		details["contract_id"] = contractIdFromTxEnvelope(transactionEnvelope)
-		details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+		details["contract_code_hash"] = nil
 	case xdr.OperationTypeRestoreFootprint:
 		details["type"] = "restore_footprint"
 
 		transactionEnvelope := getTransactionV1Envelope(operation.transaction.Envelope)
 		details["ledger_key_hash"] = ledgerKeyHashFromTxEnvelope(transactionEnvelope)
 		details["contract_id"] = contractIdFromTxEnvelope(transactionEnvelope)
-		details["contract_code_hash"] = contractCodeHashFromTxEnvelope(transactionEnvelope)
+		details["contract_code_hash"] = nil
 	default:
 		panic(fmt.Errorf("unknown operation type: %s", operation.OperationType()))
 	}
@@ -1838,24 +1838,6 @@ func contractIdFromContractData(ledgerKey xdr.LedgerKey) string {
 	return contractId
 }
 
-func contractCodeHashFromTxEnvelope(transactionEnvelope xdr.TransactionV1Envelope) string {
-	for _, ledgerKey := range transactionEnvelope.Tx.Ext.SorobanData.Resources.Footprint.ReadOnly {
-		contractCode := contractCodeFromContractData(ledgerKey)
-		if contractCode != "" {
-			return contractCode
-		}
-	}
-
-	for _, ledgerKey := range transactionEnvelope.Tx.Ext.SorobanData.Resources.Footprint.ReadWrite {
-		contractCode := contractCodeFromContractData(ledgerKey)
-		if contractCode != "" {
-			return contractCode
-		}
-	}
-
-	return ""
-}
-
 func ledgerKeyHashFromTxEnvelope(transactionEnvelope xdr.TransactionV1Envelope) []string {
 	var ledgerKeyHash []string
 	for _, ledgerKey := range transactionEnvelope.Tx.Ext.SorobanData.Resources.Footprint.ReadOnly {
@@ -1873,16 +1855,6 @@ func ledgerKeyHashFromTxEnvelope(transactionEnvelope xdr.TransactionV1Envelope)
 	return ledgerKeyHash
 }
 
-func contractCodeFromContractData(ledgerKey xdr.LedgerKey) string {
-	contractCode, ok := ledgerKey.GetContractCode()
-	if !ok {
-		return ""
-	}
-
-	contractCodeHash := contractCode.Hash.HexString()
-	return contractCodeHash
-}
-
 func filterEvents(diagnosticEvents []xdr.DiagnosticEvent) []xdr.ContractEvent {
 	var filtered []xdr.ContractEvent
 	for _, diagnosticEvent := range diagnosticEvents {
diff --git a/internal/transform/operation_test.go b/internal/transform/operation_test.go
index ea9b9023..f3a685ad 100644
--- a/internal/transform/operation_test.go
+++ b/internal/transform/operation_test.go
@@ -1854,7 +1854,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 				"function":              "HostFunctionTypeHostFunctionTypeInvokeContract",
 				"type":                  "invoke_contract",
 				"contract_id":           "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABSC4",
-				"contract_code_hash":    "",
+				"contract_code_hash":    nil,
 				"asset_balance_changes": []map[string]interface{}{},
 				"ledger_key_hash":       nilStringArray,
 				"parameters": []map[string]string{
@@ -1897,7 +1897,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 				"function":              "HostFunctionTypeHostFunctionTypeInvokeContract",
 				"type":                  "invoke_contract",
 				"contract_id":           "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABSC4",
-				"contract_code_hash":    "",
+				"contract_code_hash":    nil,
 				"asset_balance_changes": []map[string]interface{}{},
 				"ledger_key_hash":       nilStringArray,
 				"parameters": []map[string]string{
@@ -1944,7 +1944,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 				"function":           "HostFunctionTypeHostFunctionTypeCreateContract",
 				"type":               "create_contract",
 				"contract_id":        "",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"from":               "address",
 				"address":            "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABSC4",
 				"ledger_key_hash":    nilStringArray,
@@ -1956,7 +1956,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 				"function":           "HostFunctionTypeHostFunctionTypeCreateContract",
 				"type":               "create_contract",
 				"contract_id":        "",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"from":               "address",
 				"address":            "CAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABSC4",
 				"ledger_key_hash":    nilStringArray,
@@ -1972,7 +1972,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 				"function":           "HostFunctionTypeHostFunctionTypeCreateContract",
 				"type":               "create_contract",
 				"contract_id":        "",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"from":               "asset",
 				"asset":              ":GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAWHF",
 				"ledger_key_hash":    nilStringArray,
@@ -1984,7 +1984,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 				"function":           "HostFunctionTypeHostFunctionTypeCreateContract",
 				"type":               "create_contract",
 				"contract_id":        "",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"from":               "asset",
 				"asset":              ":GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAWHF",
 				"ledger_key_hash":    nilStringArray,
@@ -2000,7 +2000,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 				"function":           "HostFunctionTypeHostFunctionTypeCreateContractV2",
 				"type":               "create_contract_v2",
 				"contract_id":        "",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"from":               "asset",
 				"asset":              ":GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAWHF",
 				"ledger_key_hash":    nilStringArray,
@@ -2028,7 +2028,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 				"function":           "HostFunctionTypeHostFunctionTypeCreateContractV2",
 				"type":               "create_contract_v2",
 				"contract_id":        "",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"from":               "asset",
 				"asset":              ":GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAWHF",
 				"ledger_key_hash":    nilStringArray,
@@ -2059,7 +2059,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 			OperationDetails: map[string]interface{}{
 				"function":           "HostFunctionTypeHostFunctionTypeUploadContractWasm",
 				"type":               "upload_wasm",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"ledger_key_hash":    nilStringArray,
 			},
 			ClosedAt:            hardCodedLedgerClose,
@@ -2068,7 +2068,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 			OperationDetailsJSON: map[string]interface{}{
 				"function":           "HostFunctionTypeHostFunctionTypeUploadContractWasm",
 				"type":               "upload_wasm",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"ledger_key_hash":    nilStringArray,
 			},
 		},
@@ -2082,7 +2082,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 				"type":               "extend_footprint_ttl",
 				"extend_to":          xdr.Uint32(1234),
 				"contract_id":        "",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"ledger_key_hash":    nilStringArray,
 			},
 			ClosedAt:            hardCodedLedgerClose,
@@ -2092,7 +2092,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 				"type":               "extend_footprint_ttl",
 				"extend_to":          xdr.Uint32(1234),
 				"contract_id":        "",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"ledger_key_hash":    nilStringArray,
 			},
 		},
@@ -2105,7 +2105,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 			OperationDetails: map[string]interface{}{
 				"type":               "restore_footprint",
 				"contract_id":        "",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"ledger_key_hash":    nilStringArray,
 			},
 			ClosedAt:            hardCodedLedgerClose,
@@ -2114,7 +2114,7 @@ func makeOperationTestOutputs() (transformedOperations []OperationOutput) {
 			OperationDetailsJSON: map[string]interface{}{
 				"type":               "restore_footprint",
 				"contract_id":        "",
-				"contract_code_hash": "",
+				"contract_code_hash": nil,
 				"ledger_key_hash":    nilStringArray,
 			},
 		},