Is F29 a billable ICD-10-CM code?

Yes. F29 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does F29 sit in the tabular list?

Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29).

What cannot be coded together with F29?

F29 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

F29

F29 — Unspecified psychosis not due to a substance or known physiological condition

Billable / specific codeICD-10-CM

F29 is a billable, specific ICD-10-CM code for unspecified psychosis not due to a substance or known physiological condition. It is valid for submission on a claim.

Excludes1 — never code together

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

mental disorder NOS (F99)
unspecified mental disorder due to known physiological condition (F09)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Psychosis NOS
Unspecified schizophrenia spectrum and other psychotic disorder

Other codes that can never be billed with F29

These codes carry an Excludes1 note pointing at F29. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading F29 alone.

R44Other symptoms and signs involving general sensations and perceptions
R46Symptoms and signs involving appearance and behavior
F09Unspecified mental disorder due to known physiological condition
F53Mental and behavioral disorders associated with the puerperium, not elsewhere classified

Risk adjustment

F29 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

F29 is named in 16 Medicare coverage policies — 15 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
A56612Billing and Coding: CT of the Head
A56614Billing and Coding: Psychiatric Inpatient Hospitalization
A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing

How F29 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 F29.

Psychosis, psychotic
Disorder›schizophrenia spectrum and other psychotic disorder
Psychosis, psychotic›confusional
Psychosis, psychotic›nonorganic
Schizophrenia, schizophrenic›spectrum and other psychotic disorder

Questions about F29

Is F29 a billable ICD-10-CM code?: Yes. F29 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does F29 sit in the tabular list?: Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29).
What cannot be coded together with F29?: F29 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.