When should F23 be used instead of F29?

F23 is used for acute psychosis with schizophrenia-like symptoms lasting less than one month, while F29 is for unspecified psychosis without a specific diagnosis.

ICD-10 Coding for Psychosis(F29, F20.9, F06.2)

Q: What is the ICD-10 code for unspecified psychosis?

The ICD-10 code for unspecified psychosis not due to a substance or known physiological condition is F29.

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Explore the ICD-10 coding for psychosis, including primary codes, documentation requirements, and common pitfalls. Learn when to use F29, F20.9, and F25.9.

Also known as:

Psychotic DisorderAcute PsychosisChronic Psychosis

Related ICD-10 Code Ranges

Complete code families applicable to Psychosis

F01-F99Primary Range

Mental, Behavioral and Neurodevelopmental disorders

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
F29	Unspecified psychosis not due to a substance or known physiological condition	Use when psychosis is present without a specific diagnosis or known cause.	Absence of substance use or medical etiology documented
F20.9	Schizophrenia, unspecified	Use for chronic psychosis with schizophrenia symptoms but unspecified subtype.	Symptoms present for at least 6 months including delusions or hallucinations.
F25.9	Schizoaffective disorder, unspecified	Use when both mood disorder and psychotic symptoms are present.	Concurrent mood disorder and psychotic symptoms.

Primary ICD-10-CM Codes

Unspecified psychosis not due to a substance or known physiological condition

F29Billable

Schizophrenia, unspecified

F20.9Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Acute and transient psychotic disordersF23

Schizoaffective disorder, unspecifiedF25.9

Schizophrenia, unspecifiedF20.9

Documentation & Coding Risks

Avoid these common issues when documenting Psychosis.

Lack of specificity in psychosis documentation

Impact

Clinical: May lead to misdiagnosis and inappropriate treatment., Regulatory: Potential for audit failure due to non-compliance., Financial: Reduced reimbursement due to unspecified coding.

Mitigation

Ensure detailed documentation of symptoms., Regular training on coding updates.

Using F29 for substance-induced psychosis

Impact

Reimbursement: May lead to incorrect DRG assignment and lower reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate data affecting clinical outcomes and research.

Mitigation

Use specific codes for substance-induced psychosis such as F10.259 for alcohol-induced.

Unspecified psychosis coding

Impact

High risk of audit if using unspecified codes without supporting documentation.

Mitigation

Ensure documentation includes specific symptoms and excludes other causes.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with F29.

Unspecified Psychotic Disorder→

Primary Code

F29

Unspecified psychosis not due to a substance or known physiological condition

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ICD-10 codes5

Coding risks3

FAQs2

ICD-10 Coding for Psychosis(F29, F20.9, F06.2)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for unspecified psychosis?

When should F23 be used instead of F29?

Related condition guides