--- title: "Demographics" canonical: "https://wiki.patientsknowbest.com/space/api/4714823834/Demographics" format: markdown --- > Macro (toc) # ADT^A28 [ADT^A28](https://pkbdev.atlassian.net/wiki/spaces/api/pages/3365078168/ADT+A28?atlOrigin=eyJpIjoiMGRmYmI2ZWM1ODJjNDMyYWFlYjcyNDlkMmM4NzZlNTAiLCJwIjoiYyJ9) message should ideally be used to send the demographics for a new patient and thereby create a record in PKB for them, and the [ADT^A31](https://pkbdev.atlassian.net/wiki/spaces/api/pages/3365078195/ADT+A31?atlOrigin=eyJpIjoiYzEwNjM5YTQwZGEyNGNiMTlhNDA4YTcxYzE5ZTY2N2UiLCJwIjoiYyJ9) message for updating the demographics of an existing patient. However, use of either message will be processed by PKB in the same manner so itโ€™s not essential you are able to differentiate as described. These messages will need to consist of the [MSH](https://pkbdev.atlassian.net/wiki/spaces/api/pages/3365012972/MSH?atlOrigin=eyJpIjoiYjcyNTJhOWFhNDI1NDgxYzg5YzEyMWEwZGZkZjVhZWIiLCJwIjoiYyJ9) and [PID](https://pkbdev.atlassian.net/wiki/spaces/api/pages/3364849216/PID?atlOrigin=eyJpIjoiZWFhOTcxNzUzZjcxNGQ2ODgzZjkxZTQ3YzBlNmZiN2UiLCJwIjoiYyJ9) segments, adhering to the scope requirements. NOTE: The A28 and A31 HL7 messages do support other feed capabilities such as: - [Adding / Updating Medications](https://pkbdev.atlassian.net/wiki/spaces/api/pages/4716363812/Medications?atlOrigin=eyJpIjoiYzk2ZGM3OTY0MDZkNGY3OTg1M2Q5NmRlMDY1Zjg5Y2YiLCJwIjoiYyJ9) - [Adding / Updating Allergies](https://pkbdev.atlassian.net/wiki/spaces/api/pages/4716494866/Allergies?atlOrigin=eyJpIjoiNGVmYWE5MWZjM2VhNDNiZmIxNWEyMTU2Njg2OTdhMmYiLCJwIjoiYyJ9) - [Adding / Updating Diagnosis](https://pkbdev.atlassian.net/wiki/spaces/api/pages/4716855297/Diagnosis?atlOrigin=eyJpIjoiNDZmODBjOGNjNDRkNGNiMWFiOWY2NGIyMjhmNzhmNDgiLCJwIjoiYyJ9) - [Adding / Removing patients from a PKB Team](https://pkbdev.atlassian.net/wiki/spaces/api/pages/3364849143/Adding+Patients+to+and+Removing+from+teams?atlOrigin=eyJpIjoiNGQyNjY0MDJiMDcwNDk2Yzg2M2U1NzdhNjRjNTM3MmIiLCJwIjoiYyJ9) # Section Content > Macro (children) > ๐Ÿ“ It is acceptable to send demographics, allergy, medication and diagnosis data within the same HL7 message for a patient