Existing Wording
The Alert resource provides a single interface for managing clinical and administrative facts that need to be brought to the attention of users of clinical systems.

Proposed Wording
The Alert resource provides a single interface for managing clinical and administrative facts that need to be brought to the attention of users of clinical systems. Note that Alert is to be used for notes/facts about the patient, and does not refer to the display of "alerts and reminders" to an end user that may manifest itself as the user interface in clinical decision support functionality. The Alert resource should not be used for Allergies / Adverse Reactions (use AllergyIntolerance, or to record Alarms raised by devices attached to the patient (DSTU - under development)

Comments
It is common in speaking of HIT systems to refer to "Alerts" as those messages (warnings, etc.) that appear in a UI to alert the user that something should be done or not done, e.g., a warning about a potential drug-drug interaction. I think that this Alert resource is NOT referring to those, but rather to "facts" that are more persistent. While 5.18.2.1 says it is not to be used for "alarms" that guidance should not be buried in the "terminology bindings" section. Proposed wording clarifies that.

Grahame's Comments
no opinion