F33Header code — not billable
Major depressive disorder, recurrent
- Chapter
- 5. Mental, Behavioral and Neurodevelopmental disorders
- Category
- F33
- Effective date
- October 1, 2026
Related codes in category F33
F33.0Major depressive disorder, recurrent, mildYesF33.1Major depressive disorder, recurrent, moderateYesF33.2Major depressv disorder, recurrent severe w/o psych featuresYesF33.3Major depressv disorder, recurrent, severe w psych symptomsYesF33.4Major depressive disorder, recurrent, in remissionF33.40Major depressive disorder, recurrent, in remission, unspYesF33.41Major depressive disorder, recurrent, in partial remissionYesF33.42Major depressive disorder, recurrent, in full remissionYesF33.8Other recurrent depressive disordersYesF33.9Major depressive disorder, recurrent, unspecifiedYes
Frequently asked questions
What is ICD-10 code F33?
F33 is an ICD-10-CM diagnosis code for Major depressive disorder, recurrent.
Is F33 a billable code?
No. F33 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is F33 in?
F33 falls under Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.
When did F33 become effective?
F33 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to F33?
F33 belongs to category F33, which includes 10 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.