Delusional disorders (F22)

Browse all the diagnosis codes used for delusional disorders (f22). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Clinical Information

Delusional Parasitosis - A delusional disorder of belief in infestation by insects or other parasites. This FORMICATION is typically accompanied by dermatological manifestation such as PRURITUS that may lead to self-mutilation in order to remove the perceived parasites. It can be either primary or secondary to a somatic or psychiatric condition.

Delusions - A false belief regarding the self or persons or objects outside the self that persists despite the facts, and is not considered tenable by one's associates.

Instructional Notations

Inclusion Terms

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.

  • Delusional dysmorphophobia
  • Involutional paranoid state
  • Paranoia
  • Paranoia querulans
  • Paranoid psychosis
  • Paranoid state
  • Paraphrenia (late)
  • Sensitiver Beziehungswahn

Type 1 Excludes

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.

Type 2 Excludes

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.

  • paranoid personality disorder F60.0
  • paranoid psychosis, psychogenic F23
  • paranoid reaction F23