F33.9
ICD-10BillableMajor depressive disorder, recurrent, unspecified
Official ICD-10-CM descriptor (FY2026)
Major depressive disorder, recurrent, unspecified
F33.9 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Monopolar depression NOS
Related codes in F33
- F33.0Major depressive disorder, recurrent, mild
- F33.1Major depressive disorder, recurrent, moderate
- F33.2Major depressv disorder, recurrent severe w/o psych features
- F33.3Major depressv disorder, recurrent, severe w psych symptoms
- F33.4Major depressive disorder, recurrent, in remissioncategory
- F33.8Other recurrent depressive disorders
Where this code sits
- Parent code
- F33
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.