While the very role of children is to “individuate” from the parents, ODD is a pattern of persistent (more than 6 months) defiance and hostility toward authority figures and structure, and these people are aggressive toward peers, as well. Persons with ODD recognize the upset and annoyance in the family system, but are not accountable for this - in fact, they may complain of being unduly controlled and oppressed. “Treatment can help restore your child's self-esteem and rebuild a positive relationship between you and your child. Your child's relationships with other important adults in his or her life — such as teachers, clergy and care providers — also will benefit from early treatment.”
There have been four major changes to the ODD diagnosis in the DSM-5 & those can be viewed here.