Identity disorder may refer to:
In the DSM, Identity disorder was first listed as a separate diagnosis in version III (1980). In version IV (1994), it was replaced by Identity problem, which was not defined as a mental disorder per se, but as a condition, listed in a chapter containing problems that might be a focus of clinical attention. Identity disorder was 'downgraded' to Identity problem as research indicated that distress over one's identity is so common, that it might very well be considered part of the normality. In practice, if a person's distress persisted or worsened, an Identity problem would often be succeeded by a diagnosis of an actual disorder, such as a Mood disorder or Borderline. In DSM-5 (2013), Identity problem was removed.