Is F33 a billable ICD-10-CM code?

No. F33 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does F33 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 F33?

F33 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

F33

F33 — Major depressive disorder, recurrent

Non-billable headerICD-10-CM

F33 is a non-billable header ICD-10-CM code for major depressive disorder, recurrent. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

bipolar disorder (F31.-)
manic episode (F30.-)

Includes

Conditions this code covers.

recurrent episodes of depressive reaction
recurrent episodes of endogenous depression
recurrent episodes of major depression
recurrent episodes of psychogenic depression
recurrent episodes of reactive depression
recurrent episodes of seasonal affective disorder
recurrent episodes of seasonal depressive disorder
recurrent episodes of vital depression

Other codes that can never be billed with F33

These codes carry an Excludes1 note pointing at F33. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading F33 alone.

R40.1Stupor
R44Other symptoms and signs involving general sensations and perceptions
R53.8Other malaise and fatigue
F25Schizoaffective disorders
F20Schizophrenia
F22Delusional disorders
F30Manic episode
F31Bipolar disorder

Risk adjustment

F33 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 to one of these instead F33

7 child codes. Green means billable.

Questions about F33

Is F33 a billable ICD-10-CM code?: No. F33 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does F33 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 F33?: F33 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.