Below is a list of common DICOM Error/Warning Codes (not necessarily a complete list):

Code (Hex)	Code (Decimal)	Warning	Failure	Meaning
105	261		Y	No such attribute
106	262		Y	Invalid attribute value
107	263	Y		Attribute List Error
110	272		Y	Processing failure
111	273		Y	Duplicate SOP instance
112	274		Y	No such object instance
113	275		Y	No such event type
114	276		Y	No such argument
115	277		Y	Invalid argument value
116	278	Y		Attribute Value Out of Range
117	279		Y	Invalid object instance
118	280		Y	No such SOP class
119	281		Y	Class-instance conflict
120	282		Y	Missing attribute
121	283		Y	Missing attribute value
122	284		Y	SOP class not supported
123	285		Y	No such action type
210	528		Y	Duplicate invocation
211	529		Y	Unrecognized operation
212	530		Y	Mistyped argument
213	531		Y	Resource limitation