def non_private_tags_in_dicom_dataset(ds):
    """Return all non-private tags from a DICOM dataset.
    """
    non_private_tags = []
    for elem in ds:
        if not elem.tag.is_private and not (elem.tag.element == 0 and elem.
            tag.group > 6):
            non_private_tags.append(elem.tag)
    return non_private_tags
