http://hl7.org/fhir/StructureDefinition/Attachment|4.0.1

Base StructureDefinition for Attachment Type: For referring to data content defined in other formats.
NameFlagsCardTypeDescription & Constraints
Attachment
0..*Content in a format defined elsewhere
 
contentType
Σ
0..1codeMime type of the content, with charset etc. MimeType (required)
 
language
Σ
0..1codeHuman language of the content (BCP-47) Language (preferred)
 
data
0..1base64BinaryData inline, base64ed
 
url
Σ
0..1urlUri where the data can be found
 
size
Σ
0..1unsignedIntNumber of bytes of content (if url provided)
 
hash
Σ
0..1base64BinaryHash of the data (sha-1, base64ed)
 
title
Σ
0..1stringLabel to display in place of the data
 
creation
Σ
0..1dateTimeDate attachment was first created