ICD-10 F22: Delusional disorder
Formerly DSM-5 297.1 — Delusional Disorder. Both codes describe the same diagnosis; ICD-10 F22 is the one an insurer expects on a superbill.
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ICD-10 code F22 (Delusional disorder) is a schizophrenia spectrum code used on superbills for mental health therapy billing. Insurance companies require at least one ICD-10 code per superbill to process a reimbursement claim.
CPT Codes Commonly Used With F22
Common CPT codes paired with ICD-10 F22 include 90837 (60-min psychotherapy), 90834 (45-min psychotherapy), and 90791 (initial psychiatric evaluation). The CPT code reflects the service rendered, not the diagnosis.
Clinical Criteria
≥1 delusion lasting ≥1 month. Criterion A for schizophrenia (hallucinations, disorganized speech, etc.) not met apart from tactile/olfactory hallucinations related to the delusion. Functioning not markedly impaired outside of delusion impact. Types: erotomanic, grandiose, jealous, persecutory, somatic, mixed, unspecified.
DSM-5 Cross-Reference
DSM-5 297.1 — Delusional Disorder
Common CPT Pairings
Related Specifier Codes
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