F31.77
BillableBipolar disorder, in partial remission, most recent episode mixed
HCC Category Mapping
V28HCC 154 — Bipolar Disorders
0.265V24HCC 59 — Major Depressive, Bipolar, and Paranoid Disorders
0.309ESRDHCC 59 — Major Depressive, Bipolar, and Paranoid Disorders
0.000RxHCCHCC 131 — Bipolar Disorders
0.000What This Code Means
Bipolar disorder where the patient still has some residual symptoms, and their most recent mood episode involved both manic and depressive features occurring together (mixed episode).
Coding Tips
- •Partial remission from mixed episodes requires documentation of which symptoms persist
- •Mixed episodes are particularly important to document as they may indicate higher suicide risk
Clinical Significance
Bipolar disorder in partial remission with the most recent episode being mixed indicates the patient is recovering from a simultaneously manic and depressive episode but still has residual symptoms from both poles. Mixed episodes are particularly difficult to treat, and partial remission suggests ongoing mood instability requiring close follow-up and careful medication titration.
Documentation Requirements
- ✓Confirmed bipolar disorder diagnosis
- ✓Most recent episode documented as mixed (concurrent manic and depressive features)
- ✓Partial remission status with residual symptoms described
- ✓Specification of which residual symptoms persist (manic, depressive, or both)
- ✓Current medication management plan
- ✓Safety monitoring plan
Commonly Confused Codes
F31.78 — Bipolar disorder, full remission, most recent mixed: Complete symptom resolutionF31.60-F31.63 — Bipolar disorder, current mixed episode: Active mixed episode, not in remissionF31.73 — Bipolar disorder, partial remission, most recent manic: Last episode was pure maniaF31.75 — Bipolar disorder, partial remission, most recent depressed: Last episode was pure depression
Code Hierarchy
└F31Bipolar disorder└F31.7Bipolar disorder, currently in remission└F31.77Bipolar disorder, in partial remission, most recent episode mixed
└F31.77Bipolar disorder, in partial remission, most recent episode mixed