The free-text detail accompanying a screening result: a reading, a finding, or the sentence an
outside report gave, recorded alongside the coded result rather than instead of it.
The free-text detail accompanying a screening result: a reading, a finding, or the sentence an
outside report gave, recorded alongside the coded result rather than instead of it.
It is bound independently of the result.Observation.value[x] carries what the screening
concluded -- normal, abnormal, the measured value -- and this carries the detail a reader needs to
understand that conclusion. Writing either one never changes the other, and a record may carry this
with no result yet, or a result with no detail.
It is not a clinical comment.Observation.note is where a person's remarks about the record
live, and a consumer is entitled to render every note repeat verbatim as a comment. This is a
distinct field with its own editing lifecycle, which is why it has its own address.
At most one per Observation. A reader meeting more than one should take the first.
MIGRATION. Write this extension. A reader of records written before this extension existed may
find the same information carried as free text inside Observation.note; that carriage is not part
of this specification, is not produced going forward, and a consumer that wants it from older
records has to read it from where it was written. Moving the existing data is outstanding work and
is not described here.
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Comments
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Source of the definition for the extension code - a logical name or a URL.
Comments
The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
The free-text detail recorded against the screening's result -- a reading, a finding, or the sentence an outside report gave. Recorded independently of Observation.value[x]: neither element is derived from the other.