ICD-10 Diagnosis Code F33.9

Major depressive disorder, recurrent, unspecified

Diagnosis Code F33.9

ICD-10: F33.9
Short Description: Major depressive disorder, recurrent, unspecified
Long Description: Major depressive disorder, recurrent, unspecified
This is the 2018 version of the ICD-10-CM diagnosis code F33.9

Valid for Submission
The code F33.9 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Mental and behavioural disorders (F00–F99)
    • Mood [affective] disorders (F30-F39)
      • Major depressive disorder, recurrent (F33)

Information for Patients


Also called: Clinical depression, Dysthymic disorder, Major depressive disorder, Unipolar depression

Depression is a serious medical illness. It's more than just a feeling of being sad or "blue" for a few days. If you are one of the more than 19 million teens and adults in the United States who have depression, the feelings do not go away. They persist and interfere with your everyday life. Symptoms can include

  • Feeling sad or "empty"
  • Loss of interest in favorite activities
  • Overeating, or not wanting to eat at all
  • Not being able to sleep, or sleeping too much
  • Feeling very tired
  • Feeling hopeless, irritable, anxious, or guilty
  • Aches or pains, headaches, cramps, or digestive problems
  • Thoughts of death or suicide

Depression is a disorder of the brain. There are a variety of causes, including genetic, biological, environmental, and psychological factors. Depression can happen at any age, but it often begins in teens and young adults. It is much more common in women. Women can also get postpartum depression after the birth of a baby. Some people get seasonal affective disorder in the winter. Depression is one part of bipolar disorder.

There are effective treatments for depression, including antidepressants, talk therapy, or both.

NIH: National Institute of Mental Health

  • Depression (Medical Encyclopedia)
  • Depression - elderly (Medical Encyclopedia)
  • Depression - stopping your medicines (Medical Encyclopedia)
  • Dysthymia (Medical Encyclopedia)
  • Heart disease and depression (Medical Encyclopedia)
  • Learning about depression (Medical Encyclopedia)
  • Major depression (Medical Encyclopedia)
  • Major depression with psychotic features (Medical Encyclopedia)

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