Accession Identifier

Definition: A workflow-management IDIS generated number that identifies the Filler Order for an Imaging Service (Imaging Service Request). This identifier corresponds one-to-one to the Order Filler number but is used in internal tracking of the work by the IDIS and in communication between IDIS within the department. It also has specific requirements to assure its compatibility with DICOM. It is a case of the Entity Identifier data type (section 2.A.28). Its first component is a string that identifies the Imaging Service Request. A limit of sixteen (16) characters is required to allow compatibility with DICOM. See DICOM Standard Part 3 for further details on DICOM Attribute (0008,0050) that conveys information identical to the component one of this field.