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openEHR code

Rubric

Description

HL7_NullFlavor

271

"no information"

No information provided; nothing can be
inferred as to the reason why, including whether
there might be a possible applicable value or
not.

V10610 NI

253

"unknown"

A possible value exists but is not provided.

V10612 UNK

272

"masked"

The value has not been provided due to privacy
settings.

17932 MSK

273

"not applicable"

No valid value exists for this data item.

10611 NA

Other approaches

This analysis is the only possble view of affairs, but it does ake care of the need to know what the patient or clinician said, even if it was not definitive. Complicated null flavour approaches tend to mix up such situations with the situation where data were unavailable for a techincal reason.