---
title: Attachment Elements
slug: electronic-prior-auth/guide/attachment-elements
docTags: 
createdAt: 2026-06-18T17:59:35.882Z
---

| **Element**         | **Code**     | **Comments**                                                                                                                                          |
| ------------------- | ------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------- |
| AttachmentSource    | mandatory    | Indicates that the information was retrieved from the patient’s medical record.                                                                       |
| AttachmentData      | mandatory    | Base 64 encoded string that represents the attachment.                                                                                                |
| ClinicalInformation | conditional  | Describes the CDA or CCR, if included.                                                                                                                |
|    CDA              | mandatory    | Either CDA or CCR is mandatory, if ClinicalInformation is included.                                                                                   |
|       TemplateID    | mandatory    | CDA TemplateID for the Continuity of Care Document (CCD).                                                                                             |
|    CCR              | mandatory    | Either CDA or CCR is mandatory, if ClinicalInformation is included.                                                                                   |
|       Version       | mandatory    | CCR version.                                                                                                                                          |
| MIMEType            | mandatory    | MIME type for the attachment:<br />application/hl7-sda+xml<br />application/x-ccr<br />application/pdf<br />image/jpeg<br />image/tiff<br />image/png |