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title: "FAQs - Allergies Feed (HL7)"
canonical: "https://wiki.patientsknowbest.com/space/api/3925770269/FAQs%20-%20Allergies%20Feed%20(HL7)"
format: markdown
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| # **Que**stion | # Respons**e** |
| If I’ve already sent allergies in for a patient but now that patient doesn’t have any allergies, can I remove all of the patient’s allergies in PKB? | There isn't a way to remove all allergies you sent previously into PKB.<br>If you have previously sent allergies into PKB for a patient, and there is a change that means the patient no longer has any allergies, you must send a message that contains an AL1 segment that has something like "No Known Drug Allergies". |
| Is there a way to update one allergy in PKB and not have to send the whole list? | No.  PKB purges and replaces all allergy data for a patient record sent previously from the sending source.<br>In order to prevent an existing allergy in the PKB record from being removed, we recommend that the full list of allergies is always provided. |
| What’s the minimum data required to create an allergy in PKB? | The allergen name is the only required field. |
| What happens if the message sent containing allergies gets quarantined in the org admin queue (e.g., status other than 01 or mismatch on dob) | The allergies are not processed until the message is manually released from the org admin quarantine queue. |
| Does a patient get notified if allergies are sent into PKB? | Yes, the patient will receive an email notification, but there is a maximum of one notification sent per day for a few data types.  See our <u>[manual](http://v)</u> for more details on limits placed on notifications. |