- F33.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM F33.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of F33.9 – other international versions of ICD-10 F33.9 may differ.
ICD-10-CM F33.9 is grouped within Diagnostic Related Group(s):
- 885 Psychoses
Applicable To
- Monopolar depression NOS
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to F33.9:
- monopolar > Depression (acute) (mental) F32.A
- recurrent > major F32.9
- recurrent > depressive F32.A
- recurrent > depressive F32.A
- recurrent episode > depression (single episode) F32.89
- recurrent > Melancholia F32.A
- recurrent episode > agitated (single episode) F32.2
- recurrent episode > psychotic (single episode) F32.89
- recurrent episode > affective (single episode) F31.4