ICD-10-CM 2027
ICD-10 code for psychosis
F29
Unspecified psychosis not due to a substance or known physiological condition
✓ Billable / specific
From the official ICD-10-CM alphabetic index entry “Psychosis, psychotic”. Page updated September 29, 2026.
About coding psychosis
The ICD-10-CM code for psychosis is F29 (Unspecified psychosis not due to a substance or known physiological condition). The official index lists 119 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on F29.
Don't report F29 together with the conditions in its Excludes1 note: mental disorder NOS (F99) and unspecified mental disorder due to known physiological condition (F09).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 885 (Psychoses, relative weight 1.3901), DRG 974 (HIV with Major Related Condition with MCC, relative weight 3.0506), DRG 975 (HIV with Major Related Condition with CC, relative weight 1.3252) and DRG 976 (HIV with Major Related Condition without CC/MCC, relative weight 0.8124), in MDC 19 (Mental Diseases and Disorders) and MDC 25 (Human Immunodeficiency Virus Infections), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific psychosis codes (official index)
- acute (transient) F23 — Brief psychotic disorder
- hysterical F44.9 — Dissociative and conversion disorder, unspecified
- affective
- alcoholic F10.959 — Alcohol use, unspecified with alcohol-induced psychotic disorder, unspecified
- with
- abuse F10.159 — Alcohol abuse with alcohol-induced psychotic disorder, unspecified
- anxiety disorder F10.980 — Alcohol use, unspecified with alcohol-induced anxiety disorder
- with
- abuse F10.180 — Alcohol abuse with alcohol-induced anxiety disorder
- dependence F10.280 — Alcohol dependence with alcohol-induced anxiety disorder
- delirium tremens F10.231 — Alcohol dependence with withdrawal delirium
- delusions F10.950 — Alcohol use, unspecified with alcohol-induced psychotic disorder with delusions
- with
- abuse F10.150 — Alcohol abuse with alcohol-induced psychotic disorder with delusions
- dependence F10.250 — Alcohol dependence with alcohol-induced psychotic disorder with delusions
- dementia F10.97 — Alcohol use, unspecified with alcohol-induced persisting dementia
- with dependence F10.27 — Alcohol dependence with alcohol-induced persisting dementia
- dependence F10.259 — Alcohol dependence with alcohol-induced psychotic disorder, unspecified
- hallucinosis F10.951 — Alcohol use, unspecified with alcohol-induced psychotic disorder with hallucinations
- with
- abuse F10.151 — Alcohol abuse with alcohol-induced psychotic disorder with hallucinations
- dependence F10.251 — Alcohol dependence with alcohol-induced psychotic disorder with hallucinations
- mood disorder F10.94 — Alcohol use, unspecified with alcohol-induced mood disorder
- with
- abuse F10.14 — Alcohol abuse with alcohol-induced mood disorder
- dependence F10.24 — Alcohol dependence with alcohol-induced mood disorder
- paranoia F10.950 — Alcohol use, unspecified with alcohol-induced psychotic disorder with delusions
- with
- abuse F10.150 — Alcohol abuse with alcohol-induced psychotic disorder with delusions
- dependence F10.250 — Alcohol dependence with alcohol-induced psychotic disorder with delusions
- persisting amnesia F10.96 — Alcohol use, unspecified with alcohol-induced persisting amnestic disorder
- with dependence F10.26 — Alcohol dependence with alcohol-induced persisting amnestic disorder
- amnestic confabulatory F10.96 — Alcohol use, unspecified with alcohol-induced persisting amnestic disorder
- with dependence F10.26 — Alcohol dependence with alcohol-induced persisting amnestic disorder
- delirium tremens F10.231 — Alcohol dependence with withdrawal delirium
- Korsakoff's, Korsakov's, Korsakow's F10.26 — Alcohol dependence with alcohol-induced persisting amnestic disorder
- paranoid type F10.950 — Alcohol use, unspecified with alcohol-induced psychotic disorder with delusions
- with
- abuse F10.150 — Alcohol abuse with alcohol-induced psychotic disorder with delusions
- dependence F10.250 — Alcohol dependence with alcohol-induced psychotic disorder with delusions
- anergastic
- arteriosclerotic (simple type) (uncomplicated) F01.50 — Vascular dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
- with behavioral disturbance
- childhood F84.0 — Autistic disorder
- atypical F84.8 — Other pervasive developmental disorders
- climacteric
- confusional F29 — Unspecified psychosis not due to a substance or known physiological condition
- acute or subacute F05 — Delirium due to known physiological condition
- reactive F23 — Brief psychotic disorder
- cycloid F23 — Brief psychotic disorder
- depressive
- disintegrative (childhood) F84.3 — Other childhood disintegrative disorder
- drug-induced
- paranoid and hallucinatory states
- due to or associated with
- addiction, drug
- dependence
- alcohol F10.259 — Alcohol dependence with alcohol-induced psychotic disorder, unspecified
- drug
- epilepsy F06.8 — Other specified mental disorders due to known physiological condition
- Huntington's chorea F06.8 — Other specified mental disorders due to known physiological condition
- ischemia, cerebrovascular (generalized) F06.8 — Other specified mental disorders due to known physiological condition
- multiple sclerosis F06.8 — Other specified mental disorders due to known physiological condition
- physical disease F06.8 — Other specified mental disorders due to known physiological condition
- presenile dementia F03 — Unspecified dementia
- senile dementia F03 — Unspecified dementia
- vascular disease (arteriosclerotic) (cerebral) F01.50 — Vascular dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
- with behavioral disturbance
- epileptic F06.8 — Other specified mental disorders due to known physiological condition
- episode F23 — Brief psychotic disorder
- due to or associated with physical condition F06.8 — Other specified mental disorders due to known physiological condition
- exhaustive F43.0 — Acute stress reaction
- hallucinatory, chronic F28 — Other psychotic disorder not due to a substance or known physiological condition
- hypomanic F30.8 — Other manic episodes
- hysterical (acute) F44.9 — Dissociative and conversion disorder, unspecified
- induced F24 — Shared psychotic disorder
- infantile F84.0 — Autistic disorder
- atypical F84.8 — Other pervasive developmental disorders
- infective (acute) (subacute) F05 — Delirium due to known physiological condition
- involutional F28 — Other psychotic disorder not due to a substance or known physiological condition
- depressive
- melancholic
- paranoid (state) F22 — Delusional disorders
- Korsakoff's, Korsakov's, Korsakow's (nonalcoholic) F04 — Amnestic disorder due to known physiological condition
- alcoholic F10.96 — Alcohol use, unspecified with alcohol-induced persisting amnestic disorder
- in dependence F10.26 — Alcohol dependence with alcohol-induced persisting amnestic disorder
- induced by other psychoactive substance
- mania, manic (single episode) F30.2 — Manic episode, severe with psychotic symptoms
- recurrent type F31.89 — Other bipolar disorder
- manic-depressive
- menopausal
- mixed schizophrenic and affective F25.8 — Other schizoaffective disorders
- multi-infarct (cerebrovascular) F01.50 — Vascular dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
- with behavioral disturbance
- nonorganic F29 — Unspecified psychosis not due to a substance or known physiological condition
- specified NEC F28 — Other psychotic disorder not due to a substance or known physiological condition
- organic F09 — Unspecified mental disorder due to known physiological condition
- due to or associated with
- arteriosclerosis (cerebral)
- cerebrovascular disease, arteriosclerotic
- childbirth
- Creutzfeldt-Jakob disease or syndrome
- dependence, alcohol F10.259 — Alcohol dependence with alcohol-induced psychotic disorder, unspecified
- disease
- alcoholic liver F10.259 — Alcohol dependence with alcohol-induced psychotic disorder, unspecified
- brain, arteriosclerotic
- cerebrovascular F01.50 — Vascular dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
- with behavioral disturbance
- Creutzfeldt-Jakob
- endocrine or metabolic F06.8 — Other specified mental disorders due to known physiological condition
- acute or subacute F05 — Delirium due to known physiological condition
- liver, alcoholic F10.259 — Alcohol dependence with alcohol-induced psychotic disorder, unspecified
- epilepsy transient (acute) F05 — Delirium due to known physiological condition
- infection
- brain (intracranial) F06.8 — Other specified mental disorders due to known physiological condition
- acute or subacute F05 — Delirium due to known physiological condition
- intoxication
- alcoholic (acute) F10.259 — Alcohol dependence with alcohol-induced psychotic disorder, unspecified
- drug F11-F19 with .x59
- ischemia, cerebrovascular (generalized)
- puerperium
- trauma, brain (birth) (from electric current) (surgical) F06.8 — Other specified mental disorders due to known physiological condition
- acute or subacute F05 — Delirium due to known physiological condition
- infective F06.8 — Other specified mental disorders due to known physiological condition
- acute or subacute F05 — Delirium due to known physiological condition
- post-traumatic F06.8 — Other specified mental disorders due to known physiological condition
- acute or subacute F05 — Delirium due to known physiological condition
- paranoiac F22 — Delusional disorders
- paranoid (climacteric) (involutional) (menopausal) F22 — Delusional disorders
- psychogenic (acute) F23 — Brief psychotic disorder
- schizophrenic F20.0 — Paranoid schizophrenia
- senile F03 — Unspecified dementia
- postpartum (NOS) F53.1 — Puerperal psychosis
- presbyophrenic (type) F03 — Unspecified dementia
- presenile F03 — Unspecified dementia
- psychogenic (paranoid) F23 — Brief psychotic disorder
- depressive F32.3 — Major depressive disorder, single episode, severe with psychotic features
- puerperal (NOS) F53.1 — Puerperal psychosis
- specified type
- reactive (brief) (transient) (emotional stress) (psychological trauma) F23 — Brief psychotic disorder
- depressive F32.3 — Major depressive disorder, single episode, severe with psychotic features
- recurrent F33.3 — Major depressive disorder, recurrent, severe with psychotic symptoms
- excitative type F30.8 — Other manic episodes
- schizoaffective F25.9 — Schizoaffective disorder, unspecified
- depressive type F25.1 — Schizoaffective disorder, depressive type
- manic type F25.0 — Schizoaffective disorder, bipolar type
- schizophrenia, schizophrenic
- schizophrenia-like, in epilepsy F06.2 — Psychotic disorder with delusions due to known physiological condition
- schizophreniform F20.81 — Schizophreniform disorder
- affective type F25.9 — Schizoaffective disorder, unspecified
- brief F23 — Brief psychotic disorder
- confusional type F23 — Brief psychotic disorder
- mixed type F25.0 — Schizoaffective disorder, bipolar type
- senile NEC F03 — Unspecified dementia
- depressed or paranoid type F03 — Unspecified dementia
- simple deterioration F03 — Unspecified dementia
- specified type - code to condition
- shared F24 — Shared psychotic disorder
- situational (reactive) F23 — Brief psychotic disorder
- symbiotic (childhood) F84.3 — Other childhood disintegrative disorder
- symptomatic F09 — Unspecified mental disorder due to known physiological condition
Don't confuse with (Excludes1 for F29)
Common questions about psychosis ICD-10 codes
What is the ICD-10 code for psychosis?
- F29 — Unspecified psychosis not due to a substance or known physiological condition. More specific codes apply when the documentation supports them: F23, F44.9, F10.959, F10.159 and others below.
What is the ICD-10 code for acute psychosis?
- F23 — Brief psychotic disorder.
What is the ICD-10 code for alcoholic psychosis?
- F10.959 — Alcohol use, unspecified with alcohol-induced psychotic disorder, unspecified.
What is the ICD-10 code for arteriosclerotic psychosis?
- F01.50 — Vascular dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety.
What is the ICD-10 code for childhood psychosis?
- F84.0 — Autistic disorder.
What is the ICD-10 code for confusional psychosis?
- F29 — Unspecified psychosis not due to a substance or known physiological condition.
What is the ICD-10 code for cycloid psychosis?
- F23 — Brief psychotic disorder.
Is F29 billable?
- Yes. F29 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F29 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F29 as a principal diagnosis.
Is F29 a CC or MCC?
- No. F29 is neither a CC nor an MCC under MS-DRG v44.0.