F31.64 — Bipolar disorder, current episode mixed, severe, with psychotic features
F31.64 is a billable, specific ICD-10-CM code for bipolar disorder, current episode mixed, severe, with psychotic features. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Bipolar disorder, current episode mixed with mood-congruent psychotic symptoms
- Bipolar disorder, current episode mixed with mood-incongruent psychotic symptoms
Excludes1 inherited from the categories above F31.64
These are not written on F31.64, but they bind it: a note on a category applies to every code beneath it. Billing F31.64 with anything listed here is a denial.
Excludes2 inherited from the categories above F31.64
Also inherited, and the opposite of Excludes1: these conditions are not part of F31.64, but a patient can have both, so you may code both.
Other codes that can never be billed with F31.64
These codes carry an Excludes1 note pointing at F31.64. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading F31.64 alone.
Risk adjustment
F31.64 risk-adjusts. Under the CMS-HCC V28 model it maps to these categories:
- HCC 152 Psychosis, Except Schizophrenia0.484 RAF
- HCC 152 Psychosis, Except Schizophrenia0.484 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
F31.64 is named in 25 Medicare coverage policies — 24 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
- A56614Billing and Coding: Psychiatric Inpatient Hospitalization
- A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing
- A56685Billing and Coding: Partial Hospitalization Programs
How F31.64 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to F31.64.
- Disorder›bipolar›current episode›mixed›severe›with psychotic features
Code history
F31.64 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share F31.6. If F31.64 is not quite right, the correct code is usually one of these.
Questions about F31.64
- Is F31.64 a billable ICD-10-CM code?
- Yes. F31.64 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F31.64 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 F31.64?
- F31.64 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 F31.64 (F31) and apply to it just the same.