General - Damage to sensor/plate
General - Processing error
General - Hardware malfunction
Artifact - Film placement
Artifact - PID alignment
Artifact - General
Movement - Patient
Movement - Equipment
Positioning - Patient preparation error
Positioning - Area of interest not shown
Positioning - Cone-cut
Positioning - Elongation
Positioning - Overlapping
Positioning - Incorrect dentition
Positioning - Incorrect angulations
Positioning - Foreshortening
Incorrect exposure - Underexposure
Incorrect exposure - Overexposure
Incorrect exposure - General
Other
