Knowledgebase
How Healthcare HIPAA Lexicons Work
Posted by Carlos Rios on 16 November 2017 06:34 PM

Healthcare lexicons are designed to identify PHI as defined by the Health Insurance Portability and Accountability Act. The Healthcare lexicons are a set of two lexicons, identifiers and health terms that work together to identify PHI. The lexicons search for PHI by taking the intersection of identifying information, combined with health terms or claims information. This provides the highest level of confidence that context is actually PHI. An example of this would be a document containing a patient’s date of service and diagnosis. The date of service would constitute an identifier, and the diagnosis would constitute health information.

To search for PHI, both of the healthcare lexicons are combined using the following logic:

Identifiers AND Health Terms

The identifiers lexicon looks for indications of official business communications, such as social security numbers, subscriber IDs, dates of birth, and other terms. The health terms lexicon scans for diagnoses, diseases, insurance information, pharmaceutical information, and similar terms.

The healthcare lexicons can be used on the ZixGateway to effectively identify messages that contain PHI and then manage those messages in a method compliant with HIPAA legislation.

Health Identifiers

· Social security numbers

· Vehicle identification numbers

· Member numbers

· Medical savings account numbers

· Medical record numbers

· Subscriber numbers

· Patient ID numbers

(All of the above are only found when in close proximity to a number at least five digits long)

· Admit dates

· Dates of birth

· Dates of death

· Dates of discharge

· Dates of service

(All of the above are only found when in close proximity to a date)

Health Terms

· Diseases

· Chemicals, drugs, and analytic, diagnostic or therapeutic techniques

· Substance use or abuse

· Mental health terms

· Medical records information

· Insurance information

· Medications


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