20162017201820192020202120222023Billable/Specific Code
- F99 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM F99 became effective on October 1, 2022.
- This is the American ICD-10-CM version of F99 – other international versions of ICD-10 F99 may differ.
ICD-10-CM F99 is grouped within Diagnostic Related Group(s):
- 880 Acute adjustment reaction and psychosocial dysfunction
Applicable To
- Mental illness NOS
Type 1 Excludes
- unspecified mental disorder due to known physiological condition (F09)
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
- 2023 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to F99:
- mental > Aberration
- mental > Disease, diseased
- psychiatric > Disease, diseased
- mental (or behavioral) (nonpsychotic) > Disorder (of)
- psychological > Disorder (of)
- mental > Disturbance (s)
- psychiatric > Problem (with) (related to)
- psychogenic > Reaction
