Medications at Transitions and Clinical Handoffs (MATCH) Toolkit for Medication Reconciliation

Table 6: Categories of Medication Error Classification

Category Description Example
A No error, capacity to cause error NA
B Error that did not reach the patient NA
C Error that reached patient but unlikely to cause harm (omissions considered to reach patient) Multivitamin was not ordered on admission
D Error that reached the patient and could have necessitated monitoring and/or intervention to preclude harm Regular release metoprolol was ordered for patient instead of extended-release
E Error that could have caused temporary harm Blood pressure medication was inadvertently omitted from the orders
F Error that could have caused temporary harm requiring initial or prolonged hospitalization Anticoagulant, such as warfarin, was ordered daily when the patient takes it every other day
G Error that could have resulted in permanent harm Immunosuppressant medication was unintentionally ordered at one-fourth the dose
H Error that could have necessitated intervention to sustain life Anticonvulsant therapy was inadvertently omitted
I Error that could have resulted in death Beta-blocker was not reordered post-operatively

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Page last reviewed August 2012
Internet Citation: Table 6: Categories of Medication Error Classification. August 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/professionals/quality-patient-safety/patient-safety-resources/resources/match/matchtab6.html