Topic: Null Flavors In PCD

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Topic: Null Flavors in IHE PCD Technical Framework

In the IHE PCD Technical Framework, a method of providing further information on the reasons a particular observation is missing may be provided in the OBX segment in the OBX-8 Abnormal Flags, using the codes given in this table:

No information NI
Not applicable, no proper value NA
Temporarily not available. Information is not available at this time but it is expected that it will be available later. NAV
Numeric measurement function is available but has been deactivated by user. OFF
Masked (as for security) MSK
value not in domain OTH
Not a number NAN
Positive infinity PINF
Negative infinity NINF