F31.78
BillableBipolar disorder, in full remission, most recent episode mixed
HCC Category Mapping
V24HCC 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
This code describes bipolar disorder where the patient has completely recovered from their most recent mixed episode (which included both manic and depressive symptoms) and is currently experiencing no symptoms. The condition is in remission, meaning the patient is stable and symptom-free at this time.
Coding Tips
- •Use this code only when documentation clearly states the patient is in 'full remission' or 'complete remission' - partial remission requires a different code (F31.77)
- •The 'most recent episode mixed' component is important; verify the last bipolar episode involved both manic and depressive features before assigning this specific code
Clinical Significance
Bipolar disorder in full remission with the most recent episode being mixed indicates complete resolution of symptoms from the last mixed mood episode. Full remission from a mixed episode is a positive clinical milestone given the complexity and treatment resistance of mixed states. Continued monitoring is warranted due to the high recurrence rate.
Documentation Requirements
- ✓Confirmed bipolar disorder diagnosis
- ✓Most recent episode identified as mixed
- ✓Full remission with complete absence of mood symptoms documented
- ✓Maintenance medication regimen
- ✓Relapse monitoring plan
Commonly Confused Codes
F31.77 — Bipolar disorder, partial remission, most recent mixed: Residual symptoms presentF31.74 — Bipolar disorder, full remission, most recent manic: Different episode typeF31.76 — Bipolar disorder, full remission, most recent depressed: Different episode typeF31.70 — Bipolar disorder, remission, unspecified: Less specific
Code Hierarchy
└F31Bipolar disorder└F31.7Bipolar disorder, currently in remission└F31.78Bipolar disorder, in full remission, most recent episode mixed
└F31.78Bipolar disorder, in full remission, most recent episode mixed