Is ICD-10-CM code F22 billable?

Yes, F22 (Delusional disorders) is a billable ICD-10-CM diagnosis code, valid for reimbursement on HIPAA-covered transactions for FY2026.

What chapter does ICD-10-CM code F22 belong to?

F22 belongs to Chapter 5 of the ICD-10-CM tabular list: F01–F99 (Mental, Behavioral and Neurodevelopmental Disorders).

F22Billable

Mental, Behavioral and Neurodevelopmental Disorders·Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)·category·FY 2026

Includes

Excludes2(Not included here. Code separately if applicable.)

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Includes

Excludes1(Not coded here. Use a different code.)

mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)
paranoid schizophrenia (F20.0)

Excludes2(Not included here. Code separately if applicable.)

BillableHas subcodes

CH5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

F20-F29Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)

F22Delusional disordersBillable

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement: