MDS Alert

How would you code Section P6 (emergency room visits) for this resident?
 
One evening, Mr. X complained of chest pain and shortness of breath. He was transferred to the local emergency room for evaluation. In the emergency room, Mr. X was given IV Lasix, nitrates and oxygen. By the time he stabilized, it was late in the evening and he was admitted to the hospital for observation. He was transferred back to the nursing facility the next afternoon.

Coding rationale: Even though Mr. X was transferred to the emergency room, he was admitted to the hospital overnight. An overnight stay is not part of the definition of this item.