F31.9

Bipolar disorder, unspecified

Billable / specificHCC V28 154

F31.9 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

  • Manic depression

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

  • Manic depression
  • Disorder, bipolar
  • Disorder, bipolar, currentepisode, depressed
  • Disorder, bipolar, currentepisode, manic

Parent code

  • F31Bipolar disorderHeader

Related codes

  • F31.0Bipolar disorder, current episode hypomanicBillable
  • F31.1Bipolar disorder, current episode manic without psychotic featuresHeader
  • F31.2Bipolar disorder, current episode manic severe with psychotic featuresBillable
  • F31.3Bipolar disorder, current episode depressed, mild or moderate severityHeader
  • F31.4Bipolar disorder, current episode depressed, severe, without psychotic featuresBillable
  • F31.5Bipolar disorder, current episode depressed, severe, with psychotic featuresBillable
  • F31.6Bipolar disorder, current episode mixedHeader
  • F31.7Bipolar disorder, currently in remissionHeader
  • F31.8Other bipolar disordersHeader

Browse