diff --git a/ev_to_dicom/ev_to_dcm.py b/ev_to_dicom/ev_to_dcm.py
index 2f9199d..edb4ef8 100644
--- a/ev_to_dicom/ev_to_dcm.py
+++ b/ev_to_dicom/ev_to_dcm.py
@@ -1,5 +1,5 @@
 #   ev-to-dicom
-#   Copyright © 2023  Lee Yingtong Li
+#   Copyright © 2023–2024  Lee Yingtong Li
 #
 #   This program is free software: you can redistribute it and/or modify
 #   it under the terms of the GNU Affero General Public License as published by
@@ -45,6 +45,8 @@ def ev_files_to_dcm_file(study_uid, series_uid, series_number, image_number, inp
 			file_meta.MediaStorageSOPClassUID = '1.2.840.10008.5.1.4.1.1.6.1'  # Ultrasound Image Storage
 		else:
 			file_meta.MediaStorageSOPClassUID = '1.2.840.10008.5.1.4.1.1.3.1'  # Ultrasound Multi-frame Image Storage
+	elif metadata['metadata']['modality'] == 'PX':
+		file_meta.MediaStorageSOPClassUID = '1.2.840.10008.5.1.4.1.1.1.1'  # Digital X-Ray Image Storage - For Presentation
 	else:
 		raise Exception('Unknown modality {}'.format(metadata['metadata']['modality']))