ICD-10 Code F60.0 – Paranoid personality disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F60.0 – Paranoid personality disorder
What it is
F60.0 identifies a personality disorder marked by a long-standing pattern of suspiciousness and distrust. You use it when the chart documents paranoid personality disorder, not a temporary reaction or psychotic disorder.
Clinical signs
Common features include persistent suspicion that others are exploiting, deceiving, or harming the patient, along with reluctance to confide in others. Clinical features vary; refer to documentation.
When to use this code
Use F60.0 when the provider clearly diagnoses paranoid personality disorder in the assessment, problem list, or discharge summary. It may also apply when the record describes a chronic paranoid personality pattern without evidence of an acute psychotic episode. Check documentation if the wording is vague or suggests only suspicious behavior.
Do not use for
Do not use F60.0 for paranoia related to schizophrenia, delusional disorder, or another psychotic condition. Do not assign it for isolated mistrust, acute stress reactions, or behavior that is not documented as a personality disorder.
Coding tip
Confirm the diagnosis is chronic and personality-based, because “paranoid” alone is not enough for coding.