FY2027 ICD-10-CM reference
F31.8: Other bipolar disorders
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Other bipolar disorders. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
More specific FY2027 codes
- F31.81: Bipolar II disorderBillable code
- F31.89: Other bipolar disorderBillable code
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Includes
disorders of psychological development
Source: F01-F99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Source: F01-F99 (chapter, inherited).
Includes
bipolar I disorder
Source: F31 (category, inherited).
Includes
bipolar type I disorder
Source: F31 (category, inherited).
Includes
manic-depressive illness
Source: F31 (category, inherited).
Includes
manic-depressive psychosis
Source: F31 (category, inherited).
Includes
manic-depressive reaction
Source: F31 (category, inherited).
Includes
seasonal bipolar disorder
Source: F31 (category, inherited).
Excludes1
bipolar disorder, single manic episode (F30.-)
Source: F31 (category, inherited).
Excludes1
major depressive disorder, single episode (F32.-)
Source: F31 (category, inherited).
Excludes1
major depressive disorder, recurrent (F33.-)
Source: F31 (category, inherited).
Excludes2
cyclothymia (F34.0)
Source: F31 (category, inherited).
Compare the FY2027 additions, removals and billable-status changes
What does F31.8 mean in FY2027?
The official ICD-10-CM descriptor is Other bipolar disorders. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is F31.8 billable in FY2027?
The FY2027 order file marks F31.8 as a nonbillable heading. Select a complete billable child code.
Does F31.8 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Read the FY2027 Official Guidelines.
Review the FY2026 April edition