Concept Name Modifier for negation of the presence of a finding represented by a post-coordinated concept.
Notes. 1. For example, negation modifier applied to "sclera" in the post-coordinated structure:
CODE: anatomic location = "bile duct"
> HAS PROPERTY -- CODE: morphology = "distention"
>> HAS CONCEPT MOD -- CODE – “presence of property” = "absent"
means: “bile duct distention not present”
2. The presence-negation modifier modifies the entire post-coordinated concept, not just the source content item of the HAS CONCEPT MOD relationship. The entire branch of the tree from the content item is included in the post-coordinated structure that is negated.
TID 1350NEGATION MODIFIER, PRESENCE OF FINDINGType: Extensible Order: Significant
|NL||Rel with Parent||VT||Concept Name||VM||Req Type||Condition||Value Set Constraint|
|1||HAS CONCEPT MOD||CODE||EV(121052,DCM,”Presence of property”)||1||M||DCID (240) Present-Absent|