F31.30

Billable

Bipolar disorder, current episode depressed, mild or moderate severity, unspecified

HCC Category Mapping

V28HCC 154 — Bipolar Disorders

0.265

V24HCC 59 — Major Depressive, Bipolar, and Paranoid Disorders

0.309

ESRDHCC 59 — Major Depressive, Bipolar, and Paranoid Disorders

0.000

RxHCCHCC 131 — Bipolar Disorders

0.000

What This Code Means

Bipolar disorder with a current depressive episode of mild or moderate severity, but the specific severity level is not documented or specified.

Coding Tips

•This unspecified code should only be used when the documentation does not clearly indicate mild versus moderate severity
•Query the provider to determine whether the depressive episode is mild or moderate based on symptom severity and functional impairment

Clinical Significance

Bipolar disorder with current depressed episode of mild or moderate severity that is unspecified indicates the patient is currently in the depressive phase of their bipolar illness. Bipolar depression differs from unipolar depression in treatment approach, as standard antidepressants alone may trigger manic episodes. Accurate coding ensures appropriate treatment planning and risk stratification.

Documentation Requirements

✓Confirmed bipolar disorder diagnosis with documented history of manic or hypomanic episodes
✓Current depressive symptoms documented (depressed mood, anhedonia, sleep changes, appetite changes, fatigue)
✓Provider should specify mild versus moderate severity — query if not documented
✓Absence of psychotic features documented
✓Current treatment plan addressing bipolar depression specifically (mood stabilizers, atypical antipsychotics)

Commonly Confused Codes

F32.9 — Major depressive disorder, single episode, unspecified: Use only when there is no history of manic or hypomanic episodes F31.31 — Bipolar disorder, current episode depressed, mild: Use when mild severity is explicitly documented F31.32 — Bipolar disorder, current episode depressed, moderate: Use when moderate severity is explicitly documented F31.4 — Bipolar disorder, current episode depressed, severe without psychotic features: More severe presentation

Code Hierarchy

└F31Bipolar disorder └F31.3Bipolar disorder, current episode depressed, mild or moderate severity └F31.30Bipolar disorder, current episode depressed, mild or moderate severity, unspecified

└F31.30Bipolar disorder, current episode depressed, mild or moderate severity, unspecified