Clinical definitions of depression
Symptom lists and severity ratings
Clinical or medical diagnoses of mental health problems, including depression, are based on descriptive models listing agreed symptoms. Levels of severity are graded according to the numbers of symptoms and length of time in which they have manifested themselves.
Mood disorders
In the International Classification of Diseases (ICD-10) model used by the World Health Organisation there are several diagnoses listed under 'mood or affective disorders' (an 'affective' disorder means a disorder of the emotions). These include:
- manic episode (mania is when the mood swings 'too high' rather than too low)
- bipolar affective disorder (what used to be known as 'manic depression')
- depressive episode
- recurrent depressive disorder
- persistent mood (affective) disorder.
Most of these diagnoses have several sub-categories, and are graded either mild, moderate or severe. Another commonly used diagnostic system in the UK is the American DSM-IV system, which has slightly different categories.
Why diagnose?
The point of making a clinical diagnosis of illness is to choose the appropriate treatment. However, the latest UK guidelines* admit that 'depression' is a very broad diagnostic category. This gives the diagnosis limited validity, on its own, as a basis for effective treatment plans. The guidelines emphasise the need to take into account wider biological, social and psychological factors relevant to each individual when planning treatment.
Self-diagnosis not useful
This means it is unlikely to be useful to try to precisely 'self-diagnose'. Diagnosis of a specific mood disorder is best carried out by a suitably qualified mental health professional.
Learn more in general
Understanding and attending to the warning signs, learning more about depression and its dangers, and identifying the unique ways in which depression may be affecting you personally may help you to assess the best course of action to tackle depression and get help. Click here for a personal survey checklist to assess how depression may be affecting you.
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Links
More about suicide: thinking about suicide, making sense of suicide, surviving suicidal thoughts, desperate right now?
More about getting help: getting support and help, what’s stopping me getting help?
More about how depression works: why me?, depression habit spiral, depressed thinking
More about dealing with depression: tackling depression, finding what works for you
Check page references (*): references and sources