F33.9 is the ICD-10 code for Recurrent depressive disorder, unspecified. It is a four-character subcategory of F33 (Recurrent depressive disorder), the most specific level in the WHO edition. It belongs to the block F30–F39 (Mood [affective] disorders) in Chapter V, Mental and behavioural disorders.
- Code type
- Subcategory (4 characters)
- Chapter
- V · F00–F99
- Classification
- WHO ICD-10, 2019 version
What F33.9 includes
Conditions and terms that are coded here.
- Monopolar depression NOS
F33.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
F33.9Uspesifisert tilbakevendende depressiv lidelse
DF339Periodisk depression UNS
F33.9Määrittämätön toistuva masennus
F33.9Rezidivierende depressive Störung, nicht näher bezeichnet
F33.9Trouble dépressif récurrent, sans précision
F33.9recidiverende depressieve stoornis, niet-gespecificeerd
F33.9Major depressive disorder, recurrent, unspecified
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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