F22 — Delusional disorders
Is F22 billable?
Yes — F22 is billable for FY2027. F22 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. F22 may be submitted for encounters from October 1, 2026 through September 30, 2027.
F22 at a glance
| Code | F22 |
|---|---|
| Description | Delusional disorders |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does F22 group to?
F22 sits in MDC 19 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 885Psychosesmedical
How is F22 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to F22. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Cotard's syndrome
- Lycanthropy
- Paranoia (querulans)
- Paraphrenia, paraphrenic (late)
- Sander's disease (paranoia)
- Sensitiver Beziehungswahn
- Climacteric › paranoid state (female)
- Disorder › delusional (of)
- Disorder › paranoid (of)
- Dysmorphophobia › delusional (nondelusional)
- Insanity, insane › delusional
- Menopause, menopausal › paranoid state (asymptomatic) (state)
Excludes1 — never code together
The conditions below can never be reported together with F22 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here
The conditions below are not part of F22, but a patient may have both at the same time. When documentation supports it, F22 and the excluded code may both be reported.
Inclusion terms
Alternative wording in documentation that is classified to F22.
- Delusional dysmorphophobia
- Involutional paranoid state
- Paranoia
- Paranoia querulans
- Paranoid psychosis
- Paranoid state
- Paraphrenia (late)
- Sensitiver Beziehungswahn
Excludes2 — not included here — inherited from Chapter 5
The conditions below are not part of F22, but a patient may have both at the same time. When documentation supports it, F22 and the excluded code may both be reported.
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
How long has F22 existed?
F22 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with F22?
ICD-10-CM declares these codes mutually exclusive with F22 — exactly one of each pair can be correct for a given encounter.
- vs F20.0Paranoid schizophrenia
- vs F30.2Manic episode, severe with psychotic symptoms
- vs F31.2Bipolar disorder, current episode manic severe with psychotic features
- vs F31.5Bipolar disorder, current episode depressed, severe, with psychotic features
- vs F32.3Major depressive disorder, single episode, severe with psychotic features
- vs F33.3Major depressive disorder, recurrent, severe with psychotic symptoms