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

All DICOM network communications occur between an SCP and an SCU

Transfer Syntax is the language used in DICOM to describe the DICOM file format and the network transfer methods.

The AssociationClosed Event is provided in both COM & .NET versions, but by default disabled.

Unfortunately, the designers of some systems seem never to have bothered to read the DICOM standard.

Every DICOM Association starts with a process of negotiation whereby the Application Entities involved exchange sufficient information about themselves to allow proper communication.