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The Attributes listed in Table E.1-1 for each profile are contained in Standard IODs, or may be contained in Standard Extended IODs. An implementation claiming conformance to an Application Level
Confidentiality Profile as a de-identifier shall protect or retain all instances of the Attributes listed in Table E.1-1, whether contained in the main dataset or embedded in an Item of a Sequence of Items. The following action codes are used in the table:
– D – replace with a non-zero length value that may be a dummy value and consistent with the VR
– Z – replace with a zero length value, or a non-zero length value that may be a dummy value and consistent with the VR
– X – remove
– K – keep (unchanged for non-sequence attributes, cleaned for sequences)
– C – clean, that is replace with values of similar meaning known not to contain identifying information and consistent with the VR
– U – replace with a non-zero length UID that is internally consistent within a set of Instances
– Z/D – Z unless D is required to maintain IOD conformance (Type 2 versus Type 1)
– X/Z – X unless Z is required to maintain IOD conformance (Type 3 versus Type 2)
– X/D – X unless D is required to maintain IOD conformance (Type 3 versus Type 1)
– X/Z/D – X unless Z or D is required to maintain IOD conformance (Type 3 versus Type 2 versus Type 1)
– X/Z/U* - X unless Z or replacement of contained instance UIDs (U) is required to maintain IOD conformance (Type 3 versus Type 2 versus Type 1 sequences containing UID references)
The Attributes listed in Table E.1-1 for each profile are contained in Standard IODs, or may be contained
in Standard Extended IODs. An implementation claiming conformance to an Application Level
Confidentiality Profile as a de-identifier shall protect or retain all instances of the Attributes listed in Table
E.1-1, whether contained in the main dataset or embedded in an Item of a Sequence of Items. The
following action codes are used in the table:
– D – replace with a non-zero length value that may be a dummy value and consistent with the VR
– Z – replace with a zero length value, or a non-zero length value that may be a dummy value and
consistent with the VR
– X – remove
– K – keep (unchanged for non-sequence attributes, cleaned for sequences)
– C – clean, that is replace with values of similar meaning known not to contain identifying
information and consistent with the VR
– U – replace with a non-zero length UID that is internally consistent within a set of Instances
– Z/D – Z unless D is required to maintain IOD conformance (Type 2 versus Type 1)
– X/Z – X unless Z is required to maintain IOD conformance (Type 3 versus Type 2)
– X/D – X unless D is required to maintain IOD conformance (Type 3 versus Type 1)
– X/Z/D – X unless Z or D is required to maintain IOD conformance (Type 3 versus Type 2 versus
Type 1)
– X/Z/U* - X unless Z or replacement of contained instance UIDs (U) is required to maintain IOD
conformance (Type 3 versus Type 2 versus Type 1 sequences containing UID references)
PS 3.15: E.2 then defines the Basic Application Level Confidentiality Profile which describes how to apply the scheme above with a number of options that determine the scope of protection that is provided. These definitions allow a system to follow a standard procedure and document in a standard way the behavior of that system.
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