2026 ICD-10-CM Diagnosis Code F22Delusional disorders
F22 is a billable ICD-10-CM diagnosis code for delusional disorders. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 885. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Schizophrenia spectrum and other psychotic disorders.
For Medicare Advantage risk adjustment, F22 maps to CMS-HCC Category 152 (Psychosis, Except Schizophrenia) under the V28 model, adding a risk factor of about 0.484 for a community, non-dual, aged beneficiary in payment year 2026.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
F22 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2026.
Source: CMS Payment Year 2026 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Alzheimer's disease with delusions
- Arteriosclerotic dementia with paranoia
- Autochthonous delusion
- Believes phones are bugged
- Believes television is bugged
- Bizarre delusion
- Bizarre delusion associated with bodily sensation
- Capgras' syndrome
- Chronic paranoid psychosis
- Comments on own actions
- Comments on own reading
- Comments on own thoughts
- Comments on own writing
- Cotard's syndrome
- Cutaneous monosymptomatic delusional psychosis
- Delusion
- Delusion associated with sexual hallucinations
- Delusion associated with smell
- Delusion concerning appearance
- Delusion of being controlled
- Delusion of being loved
- Delusion of catastrophe
- Delusion of control of actions
- Delusion of control of handwriting
- Delusion of control of thought
- Delusion of control of voice
- Delusion of depersonalization
- Delusion of emitting foul body odor
- Delusion of grandiose ability
- Delusion of grandiose identity
- Delusion of guilt
- Delusion of heart disease syndrome
- Delusion of infidelity
- Delusion of misidentification
- Delusion of own appearance
- Delusion of persecution
- Delusion of poverty
- Delusion of replacement of will by external force
- Delusion of special mission
- Delusion of thought broadcasting
- Delusion of thought insertion
- Delusion of thought withdrawal
- Delusion of unworthiness
- Delusional conclusion
- Delusional disorder
- Delusional disorder currently in full remission
- Delusional disorder currently in partial remission
- Delusional disorder currently symptomatic
- Delusional disorder in remission
- Delusional disorder, mixed type
- Delusional dysmorphophobia
- Delusional hyperhidrosis
- Delusional mood
- Delusional perception
- Delusional perplexity
- Delusional transference
- Delusions of infestation
- Delusions of parasitosis
- Depressive delusion of catastrophe
- Depressive delusion of poverty
- Depressive hypochondriacal delusion
- Diffuse cerebrovascular disease
- Erotomanic delusion disorder
- Feeling guilt
- Fregoli syndrome
- Grandiose delusion disorder
- Grandiose delusions
- Guilty ideas of reference
- Hyperschemazia
- Hypochondriacal delusion
- Hyposchemazia
- Ideas of reference
- Impaired impulse control
- Involutional paranoid state
- Involutional paraphrenia
- Jealous delusion disorder
- Mood-congruent delusion
- Mood-incongruent delusion
- Morbid jealousy
- Multi-infarct dementia
- Multi-infarct dementia with delusions
- Nihilistic delusion
- Obsessive-compulsive disorder
- Olfactory reference disorder
- Paranoia querulans
- Paranoid delusion
- Paranoid disorder
- Paranoid ideation
- Paraphrenia
- Passivity of drive
- Persecutory delusion disorder
- Persistent delusional disorder
- Pinocchio syndrome
- Pornographomania
- Presenile dementia with delusions
- Primary delusions
- Pseudologia fantastica
- Religious delusion
- Self-control - finding
- Senile dementia with delusion
- Senile dementia with psychosis
- Simple paranoid state
- Somatic delusion disorder
- Systematized delusion
- Thought alienation
- Thought broadcast
- Thought commentary
- Transference
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Delusional dysmorphophobia
- Involutional paranoid state
- Paranoia
- Paranoia querulans
- Paranoid psychosis
- Paranoid state
- Paraphrenia (late)
- Sensitiver Beziehungswahn
Type 1 Excludes
- mood [affective] disorders with psychotic symptoms F30.2 F31.2 F31.5 F31.64 F32.3 F33.3
- paranoid schizophrenia F20.0
Type 2 Excludes
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Climacteric (female) See Also: Menopause;
paranoid state F22
Disorder (of) See Also: Disease;
Insanity, insane See Also: Psychosis;
delusional F22
Lycanthropy F22
delusion F22
Reaction See Also: Disorder;
paranoid F22
climacteric F22
involutional F22
menopausal F22
simple F22
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Transference
the displacement of activities or cognitive content from one area to another.Paraphrenia
a form of schizophrenia characterized by delusions (of persecution or grandeur or jealousy); symptoms may include anger and anxiety and aloofness and doubts about gender identity; unlike other types of schizophrenia the patients are usually presentable and (if delusions are not acted on) may function in an apparently normal manner.Paraphrenia
a chronic psychotic disorder characterized by a strong delusional component with preservation of thought and personality. it is associated with paranoid dementia and paranoia, but with less personality deterioration than schizophrenia and without fulfilling the clinical features of a delusional disorder.
Patient EducationClinical
Psychotic Disorders
Psychotic disorders are severe mental disorders that cause abnormal thinking and perceptions. People with psychoses lose touch with reality. Two of the main symptoms are delusions and hallucinations. Delusions are false beliefs, such as thinking that someone is plotting against you or that the TV is sending you secret messages.
Read the full article at MedlinePlus
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Convert F22 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About F22Overview
What is the ICD-10 code for delusional disorders?
The ICD-10-CM code for delusional disorders is F22. It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is F22 (Delusional disorders) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report delusional disorders on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does F22 group to?
When delusional disorders is the principal diagnosis on an inpatient stay, it groups to MS-DRG 885 (psychoses), which carries a relative weight of 1.3968. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of F22?
Under the General Equivalence Mappings, delusional disorders converts to ICD-9-CM 297.0 (paranoid state, simple), 297.1 (delusional disorder), and 297.2 (paraphrenia). The mapping is approximate, so confirm the match fits the documentation.
What HCC is F22?
F22 (delusional disorders) maps to CMS-HCC Category 152 (Psychosis, Except Schizophrenia), commonly written as HCC 152, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2026. It mapped to HCC 59 under the retired V24 model. It also maps in the PACE (CMS-HCC V22), ESRD (V21), and ESRD (V24) models. In the Part D prescription drug model it maps to RxHCC 133.
Does F22 risk-adjust for Medicare Advantage payment?
Yes. When documented and reported on a Medicare Advantage encounter, F22 adds a risk adjustment factor of about 0.484 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.208 to 0.579 depending on the payment segment). A more severe related category (HCC 151) supersedes it when both are reported. See the full factor table on the HCC 152 category page.
