F31.81

Bipolar II disorder

Billable / specificHCC V28 154

F31.81 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Bipolar disorder, type 2

Includes (from F31)

  • disorders of psychological development
  • bipolar I disorder
  • bipolar type I disorder
  • manic-depressive illness
  • manic-depressive psychosis
  • manic-depressive reaction
  • seasonal bipolar disorder

Excludes1

Not coded here — never report together with this code.

  • bipolar disorder, single manic episode (F30.-) (from F31)
  • major depressive disorder, single episode (F32.-) (from F31)
  • major depressive disorder, recurrent (F33.-) (from F31)

Excludes2

Not included here — may be reported together when both conditions exist.

  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99) (from F31)
  • cyclothymia (F34.0) (from F31)

Also known as

  • Bipolar disorder, type 2
  • Disorder, bipolar, II

Parent code

  • F31.8Other bipolar disordersHeader

Related codes

  • F31.89Other bipolar disorderBillable

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