Null Reasons

Whenever submitting data to SanteDB's CDR where an element is marked as required, you may submit a null reason (also known as a null flavor). The allowed null flavors are:U

Mnemonic	Description
AskedUnknown	The value was asked for, however the known value could not be collected.
Derived	The value was not supplied because it can be calculated from other data provided.
Invalid	The value was not supplied because the known value would violate business rules.
Masked	The value is not supplied because the value is sensitive and disclosure may violate privacy.
NotApplicable	The value is not supplied because it is not applicable (for example: Last menstrual period for a man)
NotAsked	The value is not supplied because it was not asked for.
Unavailable	The value is not available at the time of data capture.
NoInformation	The value is not supplied because there is no information supplied. This is the default null flavor to use.
NegativeInfinity	The value is not supplied because it is negative infinity.
Other	The value was not supplied for some other reason.
PositiveInfinity	The value was not supplied because it is positive infinity.
SufficientQuantity	The value is of sufficient quantity to meet a clinical trigger, however the exact value could not be measured (i.e. off-scale 0 or off-scale max)
Trace	The value is above 0, however the exact value is unknown or the equipment could not measure the quantity.
UnEncoded	The value could not be encoded into the message.
Unknown	The value is unknown (not asked, not measured, etc.)