A coding professional has noted that a particular nurse practitioner is sending orders for outpatient testing with the diagnosis listed as "possible" or "rule out" without any accompanying signs or symptoms or abnormal findings suggestive of the possible diagnosis. What action should the coding professional take?

A) Nothing, code the diagnosis as if it exists since this is an outpatient.
B) Use an observation code for the encounter.
C) Ask for an outpatient CDI specialist to educate the NP on the guidelines for outpatient coding which do not permit the use of "possible" or "rule out" diagnoses.
D) Report the nurse practitioner to quality management and billing as this practice is causing billing delays and an increase in the discharge not final billed metric.