This
page
is
part
of
the
FHIR
Specification
(v3.0.2:
(v4.0.1:
R4
-
Mixed
Normative
and
STU
3).
)
in
it's
permanent
home
(it
will
always
be
available
at
this
URL).
The
current
version
which
supercedes
this
version
is
5.0.0
.
For
a
full
list
of
available
versions,
see
the
Directory
of
published
versions
.
Page
versions:
R4B
R4
R3
R4
R3
This
code
system
http://hl7.org/fhir/concept-map-equivalence
defines
the
following
codes:
Lvl
Code
Display
Definition
1
relatedto
Related
To
The
concepts
are
related
to
each
other,
and
have
at
least
some
overlap
in
meaning,
but
the
exact
relationship
is
not
known
known.
2
equivalent
Equivalent
The
definitions
of
the
concepts
mean
the
same
thing
(including
when
structural
implications
of
meaning
are
considered)
(i.e.
extensionally
identical).
3
equal
Equal
The
definitions
of
the
concepts
are
exactly
the
same
(i.e.
only
grammatical
differences)
and
structural
implications
of
meaning
are
identical
or
irrelevant
(i.e.
intentionally
identical).
2
wider
Wider
The
target
mapping
is
wider
in
meaning
than
the
source
concept.
2
subsumes
Subsumes
The
target
mapping
subsumes
the
meaning
of
the
source
concept
(e.g.
the
source
is-a
target).
2
narrower
Narrower
The
target
mapping
is
narrower
in
meaning
than
the
source
concept.
The
sense
in
which
the
mapping
is
narrower
SHALL
be
described
in
the
comments
in
this
case,
and
applications
should
be
careful
when
attempting
to
use
these
mappings
operationally.
2
specializes
Specializes
The
target
mapping
specializes
the
meaning
of
the
source
concept
(e.g.
the
target
is-a
source).
2
inexact
Inexact
The
target
mapping
overlaps
with
the
source
concept,
but
both
source
and
target
cover
additional
meaning,
or
the
definitions
are
imprecise
and
it
is
uncertain
whether
they
have
the
same
boundaries
to
their
meaning.
The
sense
in
which
the
mapping
is
narrower
inexact
SHALL
be
described
in
the
comments
in
this
case,
and
applications
should
be
careful
when
attempting
to
use
these
mappings
operationally.
1
unmatched
Unmatched
There
is
no
match
for
this
concept
in
the
destination
concept
target
code
system.
2
disjoint
Disjoint
This
is
an
explicit
assertion
that
there
is
no
mapping
between
the
source
and
target
concept.
Explanation
of
the
columns
that
may
appear
on
this
page:
Level
A
few
code
lists
that
FHIR
defines
are
hierarchical
-
each
code
is
assigned
a
level.
In
this
scheme,
some
codes
are
under
other
codes,
and
imply
that
the
code
they
are
under
also
applies
See
Code
System
for
further
information.
Source
The
source
of
the
definition
of
the
code
(when
the
value
set
draws
in
codes
defined
elsewhere)
Code
The
code
(used
as
the
code
in
the
resource
instance).
If
the
code
is
in
italics,
this
indicates
that
the
code
is
not
selectable
('Abstract')
Display
The
display
(used
in
the
display
element
of
a
Coding
).
If
there
is
no
display,
implementers
should
not
simply
display
the
code,
but
map
the
concept
into
their
application