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Healhcare Information Technology Standards Panel
HealthCare Information Technology Standards Panel
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HITSP priorities are established by the Office of the National Coordinator for Health Information Technology (ONCHIT).


CAP 138 - Retrieve Pseudonym

This Capability addresses interoperability requirements to support a particular type of anonymization that both removes the association with a data subject, and adds an association between a particular set of characteristics relating to the data subject and one or more pseudonyms. This enables a process of supplying an alternative identifier, which permits a patient to be referred to by a key that suppresses his/her actual identification information. The purpose of this Capability is to offer a pseudonymization framework for situations that require the use of specific data without disclosing the specific identity of patients or providers. Pseudo-identifiers are intended to allow accessibility to clinical information, while safeguarding any information that may compromise the privacy of the individual patient or provider. However, unlike anonymization, the alternative identifier key can be used to re-identify the individuals whose data was used

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ConstructTitle / VersionReferenced byStatusDocument Access
CAP 138Retrieve Pseudonym
IS 6 V:2.0
IS 92 V:1.0
IS 11 V:1.0.1
IS 91 V:0.0.1
(Panel Approved)

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