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ICD-10-CM Code F22
Delusional disorders

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
Mental Health
Mental Health Code
Indicates that the ICD code is referenced in DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, Version 5)
| ICD-10 from 2011 - 2016

F22 is a billable ICD code used to specify a diagnosis of delusional disorders. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code F22 is used to code Psychosis

Psychosis refers to an abnormal condition of the mind described as involving a "loss of contact with reality". People with psychosis are described as psychotic. People experiencing psychosis may exhibit some personality changes and thought disorder. Depending on its severity, this may be accompanied by unusual or bizarre behavior, as well as difficulty with social interaction and impairment in carrying out daily life activities.

Specialty: Psychiatry
MeSH Codes: , , , , , , , , , , , D003702
ICD 9 Codes: 290, 291, 292, 293, 294, 296.5, 296, 297, 298, 299, 300.29, 297
Source: Wikipedia

Coding Notes for F22 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Delusional dysmorphophobia
Involutional paranoid state
Paranoia querulans
Paranoid psychosis
Paranoid state
Paraphrenia (late)
Sensitiver Beziehungswahn
Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
Mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3) - instead, use code F30.2
Paranoid schizophrenia - instead, use code F20.0
Code Type-2 Excludes:
Type-2 Excludes
Type-2 Excludes means the excluded conditions are different, although they may appear similar. A patient may have both conditions, but one does not include the other. Excludes 2 means "not coded here."
Paranoid personality disorder - instead, use code F60.0
Paranoid psychosis, psychogenic - instead, use Code F23
Paranoid reaction - instead, use Code F23

MS-DRG Mapping

  • DRG Group #885 - Psychoses.

ICD-10-CM Alphabetical Index References for 'F22 - Delusional disorders'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code F22. Click on any term below to browse the alphabetical index.

Sander's disease(paranoia) (F22)
Sensitiver Beziehungswahn (F22)
Paranoia(querulans) (F22)
Paraphrenia, paraphrenic(late) (F22)
Lycanthropy (F22)
Cotard's syndrome (F22)


Paranoid state, simple (approximate match)
Delusional disorder (approximate match)
Paraphrenia (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code F22 and a single ICD9 code, 297.2 is an approximate match for comparison and conversion purposes.

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/F22