Code Systems

Access code systems for Standards and initiatives.

Code Systems

A CodeSystem is used to declare the existence of and describe a code system or code system supplement and its key properties, and optionally define a part of or all of its content. Code systems define which codes (symbols and/or expressions) exist, and how they are understood.

DirectTrust CodeSystems

CodeSystem Name Description
ProvSuffixCS The system of codes to express the representations of additional information about a person shown at the end of their family name.
ServDescCS The system of codes to express the use cases for a Direct endpoint.
OrgTypeCS The system of codes to express the difference Organization Classifications defined and recognized by DirectTrust.
HispIDCS The system of codes to express the HISP ID for each HISP in the directory.
DTFormatCodeCS The system of codes to express formatCode metadata defined by implementation guides published by DirectTrust. A formatCode specifies the technical format that a Direct message’s content conforms to. A formatCode is a further specialization more detailed than the mime-type. A formatCode provides sufficient information to allow any potential Content Consumer to know if it can process and/or display some or all of the content of the Direct message based on the content encoding, structure and conformance indicated by the formatCode. The set of formatCodes used across the healthcare ecosystem is intended to be extensible to easily expand interoperability.

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