F31.6
⚠ Non-billable
Bipolar disorder, current episode mixed
ICD-10-CM · FY2026 · Mental, Behavioral and Neurodevelopmental Disorders
Code
F31.6
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Mental, Behavioral and Neurodevelopmental Disorders
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code F31.6?
ICD-10-CM code F31.6 represents Bipolar disorder, current episode mixed. It is a non-billable header code requiring a more specific subcategory in the Mental, Behavioral and Neurodevelopmental Disorders chapter, effective October 1, 2025 – September 30, 2026.
Is F31.6 billable?
No. F31.6 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is F31.6 in?
F31.6 belongs to the Mental, Behavioral and Neurodevelopmental Disorders chapter (F01–F99) of ICD-10-CM.
Related codes in the F31 category
F31
Bipolar disorder
Non-billable
F31.0
Bipolar disorder, current episode hypomanic
Billable
F31.1
Bipolar disorder, current episode manic without psychotic features
Non-billable
F31.2
Bipolar disorder, current episode manic severe with psychotic features
Billable
F31.3
Bipolar disorder, current episode depressed, mild or moderate severity
Non-billable
F31.4
Bipolar disorder, current episode depressed, severe, without psychotic features
Billable
F31.5
Bipolar disorder, current episode depressed, severe, with psychotic features
Billable
F31.7
Bipolar disorder, currently in remission
Non-billable
Search all 98,186 ICD-10-CM codes instantly
Search ICDwise →