| Level/ Type |
Code |
Display Name |
Code System |
Designations |
| 0‑L |
NI
|
no information
|
Null Flavor |
No information whatsoever can be inferred from this exceptional value. This is the
most general exceptional value. It is also the default exceptional value.
|
| 0‑L |
MSK
|
masked
|
Null Flavor |
'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.'
|
| 0‑L |
NA
|
not applicable
|
Null Flavor |
Known to have no proper value (e.g., last menstrual period for a male). |
| 0‑L |
OTH
|
other
|
Null Flavor |
The actual value is not an element in the value domain of a variable. (e.g., concept
not provided by required code system).
|
| 0‑L |
NINF
|
negative infinity
|
Null Flavor |
Negative infinity of numbers. |
| 0‑L |
PINF
|
positive infinity
|
Null Flavor |
Positive infinity of numbers. |
| 0‑L |
UNK
|
unknown
|
Null Flavor |
A proper value is applicable, but not known. |
| 0‑L |
ASKU
|
asked but unknown
|
Null Flavor |
Information was sought but not found (e.g., patient was asked but didn't know) |
| 0‑L |
NAV
|
temporarily unavailable
|
Null Flavor |
Information is not available at this time but it is expected that it will be available
later.
|
| 0‑L |
NASK
|
not asked
|
Null Flavor |
This information has not been sought (e.g., patient was not asked) |
| 0‑L |
QS
|
sufficient quantity
|
Null Flavor |
'The specific quantity is not known, but is known to be non-zero and is not specified
because it makes up the bulk of the material. 'Add 10mg of ingredient X, 50mg of ingredient
Y, and sufficient quantity of water to 100mL.' The null flavor would be used to express
the quantity of water.'
|
| 0‑L |
TRC
|
trace
|
Null Flavor |
The content is greater than zero, but too small to be quantified. |
|
| |
Value Set NullFlavor 2013‑09‑09
