Fig. 2.

Classification of medication errors according to NCC-MERP. (A: no error, B: an error occurred but the error did not reach the patient, C: an error occurred that reached the patient, but did not cause patient harm, D: an error occurred that reached the patient and required monitoring to confirm that it resulted in no harm to the patient and/or required intervention to preclude harm, E: an error occurred that may have contributed to or resulted in temporary harm to the patient and required intervention, F: An error occurred that may have contributed to or resulted in temporary harm to the patient and required initial or prolonged hospitalization, G An error occurred that may have contributed to or resulted in permanent patient harm, H An error occurred that required intervention necessary to sustain life, I:an error occurred that may have contributed to or resulted in the patient’s death)