Turning on the "Mask PHI" functionality masks private patient health information displayed within the HL7 Editor. This can be useful for showing someone else a message within HL7Spy while keeping confidential the information contained in the message. To active this functionality click the "Mask PHI" button in the Home Ribbon tab, in the "Options" group. Configuration for this feature is found under the "Editor Options" menu.

Configuring Mask PHI Settings

Configure which HL7 fields are masked when the "Mask PHI" option is enabled in the HL7 Editor.

Default Masking - All fields in segments that are not mentioned in "Fields to Mask" and "Fields to NOT Mask" and "Free Text Fields" are fully masked.
Fields to Mask - Fields specified in this section will be masked. Other fields in the message will remain unmasked.
Fields to NOT Mask - Fields specified in this section will NOT be masked. To NOT mask an entire segment, specify just the segment name.
Free Text Fields - Fields identified here will have PHI text automatically masked. Any text that matches any field that was masked in other parts of the message will be masked.
Mask Character - Specify the character that will be used to "mask" the PHI.