ICD-10-CM › F01-F99 › F30-F39 › F31 Bipolar disorder › F31.9
Bipolar disorder, unspecified
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Bipolar disorder, unspecified
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from F31 Bipolar disorder
Excludes1 - never coded here
- bipolar disorder, single manic episode (F30.-)
- major depressive disorder, single episode (F32.-)
- major depressive disorder, recurrent (F33.-)
Excludes2 - not included here
- cyclothymia (F34.0)
Includes
- bipolar I disorder
- bipolar type I disorder
- manic-depressive illness
- manic-depressive psychosis
- manic-depressive reaction
- seasonal bipolar disorder
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Lunacy
- Madness
- Vesania
- Monomania
- Loss > mind
- Insanity, insane
- Alienation, mental
- Unsoundness of mind
- Derangement > mental
- Disorder > affective
- Disorder > psychotic
- Reaction > affective
- Reaction > psychotic
- Deterioration > mental
- Mental > deterioration
- Disorder > mood > bipolar
- Illness > manic-depressive
- Reaction > manic-depressive
- Syndrome > manic-depressive
- Disease, diseased > psychotic
- Disorder > mental > psychotic
- Psychosis, psychotic > affective
- Psychosis, psychotic > manic-depressive
- Manic-depressive insanity, psychosis, or syndrome
- Psychosis, psychotic > puerperal > specified type
- Manic depression
- Disorder > bipolar
- Disorder > bipolar > current episode > manic
- Disorder > bipolar > current episode > depressed
Codes in the same group
| Code | Description | Status |
|---|---|---|
| F31.0 | Bipolar disorder, current episode hypomanic | Valid |
| F31.1 | Bipolar disorder, current episode manic without psychotic features | Not billable |
| F31.2 | Bipolar disorder, current episode manic severe with psychotic features | Valid |
| F31.3 | Bipolar disorder, current episode depressed, mild or moderate severity | Not billable |
| F31.4 | Bipolar disorder, current episode depressed, severe, without psychotic features | Valid |
| F31.5 | Bipolar disorder, current episode depressed, severe, with psychotic features | Valid |
| F31.6 | Bipolar disorder, current episode mixed | Not billable |
| F31.7 | Bipolar disorder, currently in remission | Not billable |
| F31.8 | Other bipolar disorders | Not billable |