| iml_id | int(11) | NO | | PRI | auto_increment | |
| iml_cus_id | int(11) | NO | 0 | | | Customer ID# |
| iml_cli_id | int(11) | NO | 0 | MUL | | Client ID# |
| iml_if_id | int(11) | NO | 0 | MUL | | Interface ID# |
| iml_lif_id | int(11) | NO | 0 | MUL | | Lab Interface ID# |
| iml_outgoing | tinyint(1) | NO | 0 | | | True indicates outgoing message, false is incoming |
| iml_message_type | varchar(50) | NO | | | | Indicates the type of HL7 message |
| iml_trigger | varchar(50) | NO | | | | Indicates the associated trigger type for the message |
| iml_external_id | varchar(50) | NO | | MUL | | ID the external service uses to map this encounter |
| iml_control_id | varchar(50) | NO | | MUL | | Control ID of the HL7 message |
| iml_signature | varchar(50) | NO | | | | A md5 hash-signature of the hl7 message |
| iml_disabled | tinyint(1) | NO | 0 | | | True indicates the message has been disabled or cancelled for some reason |
| iml_created | datetime | YES | CURRENT_TIMESTAMP | | | |
| iml_modified | datetime | YES | CURRENT_TIMESTAMP | | | |