Generated Narrative: ValueSet v3-ClassNullFlavor

Language: en

Include these codes as defined in http://terminology.hl7.org/CodeSystem/v3-NullFlavor

Code	Display	Definition
ASKU	asked but unknown	Information was sought but not found (e.g., patient was asked but didn't know)
MSK	masked	There is information on this item available but it has not been provided by the sender due to security, privacy or other reasons. There may be an alternate mechanism for gaining access to this information. Note: using this null flavor does provide information that may be a breach of confidentiality, even though no detail data is provided. Its primary purpose is for those circumstances where it is necessary to inform the receiver that the information does exist without providing any detail.
NA	not applicable	Known to have no proper value (e.g., last menstrual period for a male).
NASK	not asked	This information has not been sought (e.g., patient was not asked)
NAV	temporarily unavailable	Information is not available at this time but it is expected that it will be available later.
NI	NoInformation	Description:The value is exceptional (missing, omitted, incomplete, improper). No information as to the reason for being an exceptional value is provided. This is the most general exceptional value. It is also the default exceptional value.
UNK	unknown	Description:A proper value is applicable, but not known. Usage Notes: This means the actual value is not known. If the only thing that is unknown is how to properly express the value in the necessary constraints (value set, datatype, etc.), then the OTH or UNC flavor should be used. No properties should be included for a datatype with this property unless: 1. Those properties themselves directly translate to a semantic of "unknown". (E.g. a local code sent as a translation that conveys 'unknown') 2. Those properties further qualify the nature of what is unknown. (E.g. specifying a use code of "H" and a URL prefix of "tel:" to convey that it is the home phone number that is unknown.)