2025 ICD-10-CM Diagnosis Code F31.0

Bipolar disorder, current episode hypomanic

• F31.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2025 edition of ICD-10-CM F31.0 became effective on October 1, 2024.
• This is the American ICD-10-CM version of F31.0 – other international versions of ICD-10 F31.0 may differ.

The following code(s) above F31.0 contain annotation back-references

 that may be applicable to F31.0:

• F01-F99  Mental, Behavioral and Neurodevelopmental disorders
• F31  Bipolar disorder

Approximate Synonyms

• Bipolar 1 disorder, hypomanic
• Bipolar 1 disorder, hypomanic episode
• Bipolar 1 disorder, hypomanic episode w mixed features
• Bipolar i disorder, most recent episode hypomanic
• Mixed hypomanic bipolar i disorder

ICD-10-CM F31.0 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

• 885 Psychoses

Convert F31.0 to ICD-9-CMCode History

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 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
• 2024 (effective 10/1/2023): No change
• 2025 (effective 10/1/2024): No change

Diagnosis Index entries containing back-references to F31.0:

• Disorder (of) – see also Disease
  • bipolar (I) (seasonal) (type 1) F31.9
    • current (or most recent)
      • hypomanic F31.0