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F31Non-billableSave

F31 - Bipolar disorder

ICD-10-CM Chapter 5: Mental, Behavioral and Neurodevelopmental disorders · F30-F39 Mood [affective] disorders (F30-F39) · Top-level category · FY2027

Coding Guidance

F31 is a non-billable heading. Report one of the 10 more specific codes below.

Includes, Excludes and Coding Notes

IncludesFrom F31

Conditions this code covers.

  • bipolar I disorder
  • bipolar type I disorder
  • manic-depressive illness
  • manic-depressive psychosis
  • manic-depressive reaction
  • seasonal bipolar disorder
Excludes 1 — Not Coded HereFrom F31

Mutually exclusive: these conditions are never reported together with this code.

  • bipolar disorder, single manic episode (F30.-)
  • major depressive disorder, single episode (F32.-)
  • major depressive disorder, recurrent (F33.-)
Excludes 2 — Not Included HereFrom F31

Not part of this code; report both codes when the patient has both conditions.

  • cyclothymia (F34.0)
IncludesFrom Chapter F01-F99

Conditions this code covers.

  • disorders of psychological development
Excludes 2 — Not Included HereFrom Chapter F01-F99

Not part of this code; report both codes when the patient has both conditions.

  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

More Specific Codes (10)

F31.0Bipolar disorder, current episode hypomanic→F31.1Bipolar disorder, current episode manic without psychotic features→F31.2Bipolar disorder, current episode manic severe with psychotic features→F31.3Bipolar disorder, current episode depressed, mild or moderate severity→F31.4Bipolar disorder, current episode depressed, severe, without psychotic features→F31.5Bipolar disorder, current episode depressed, severe, with psychotic features→F31.6Bipolar disorder, current episode mixed→F31.7Bipolar disorder, currently in remission→F31.8Other bipolar disorders→F31.9Bipolar disorder, unspecified→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with F31.