F31.1 — Bipolar disorder, current episode manic without psychotic features
F31.1 is a non-billable header ICD-10-CM code for bipolar disorder, current episode manic without psychotic features. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 inherited from the categories above F31.1
These are not written on F31.1, but they bind it: a note on a category applies to every code beneath it. Billing F31.1 with anything listed here is a denial.
Excludes2 inherited from the categories above F31.1
Also inherited, and the opposite of Excludes1: these conditions are not part of F31.1, but a patient can have both, so you may code both.
Other codes that can never be billed with F31.1
These codes carry an Excludes1 note pointing at F31.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading F31.1 alone.
Risk adjustment
F31.1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
F31.1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead F31.1
4 child codes. Green means billable.
- F31.10Bipolar disorder, current episode manic without psychotic features, unspecified
- F31.11Bipolar disorder, current episode manic without psychotic features, mild
- F31.12Bipolar disorder, current episode manic without psychotic features, moderate
- F31.13Bipolar disorder, current episode manic without psychotic features, severe
Related codes at this level
Codes that share F31. If F31.1 is not quite right, the correct code is usually one of these.
- F31.0Bipolar disorder, current episode hypomanic
- 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
Questions about F31.1
- Is F31.1 a billable ICD-10-CM code?
- No. F31.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does F31.1 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Mood [affective] disorders (F30-F39).
- What cannot be coded together with F31.1?
- F31.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above F31.1 (F31) and apply to it just the same.