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ICD-10 Coding for Psychosis Not Otherwise Specified(F29)

Complete ICD-10-CM coding and documentation guide for Psychosis Not Otherwise Specified. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Psychosis NOSUnspecified Psychosis

Related ICD-10 Code Ranges

Complete code families applicable to Psychosis Not Otherwise Specified

F20-F29Primary Range

Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders

This range includes psychotic disorders that do not meet the criteria for more specific diagnoses such as schizophrenia or mood disorders with psychotic features.

Psychotic disorder with delusions due to known physiological condition

Used when psychosis is secondary to a medical condition, requiring documentation of the physiological cause.

Substance-induced psychotic disorder

Applicable when psychosis is directly linked to substance use, necessitating evidence of substance involvement.

Key Information: ICD-10 code for psychosis NOS

Essential facts and insights about Psychosis Not Otherwise Specified

The ICD-10 code for psychosis not otherwise specified is F29, used when symptoms do not meet criteria for specific disorders.

Primary ICD-10-CM Code for psychosis not otherwise specified

Unspecified psychosis not due to a substance or known physiological condition
Billable Code

Decision Criteria

clinical Criteria

  • Presence of psychotic symptoms without meeting criteria for specific disorders

coding Criteria

  • Exclusion of substance-induced or medical condition causes

documentation Criteria

  • Detailed documentation of symptoms and exclusion criteria

Applicable To

  • Psychosis NOS
  • Unspecified psychosis

Excludes

  • Schizophrenia (F20.-)
  • Schizoaffective disorder (F25.-)
  • Substance-induced psychotic disorder (F1x.5x)

Clinical Validation Requirements

  • Presence of psychotic symptoms such as hallucinations or delusions
  • Exclusion of schizophrenia, mood disorders, and substance-induced causes
  • Negative toxicology reports

Code-Specific Risks

  • Incorrect use when a more specific diagnosis is applicable
  • Failure to document exclusion of other causes

Coding Notes

  • Ensure thorough documentation of symptoms and exclusion of other causes.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Psychotic disorder with delusions due to known physiological condition

F06.2
Use when psychosis is secondary to a medical condition.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Brief psychotic disorder

F23
Used for psychotic episodes lasting less than one month.

Unspecified schizophrenia

F20.9
Requires chronic symptoms meeting schizophrenia criteria.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Psychosis Not Otherwise Specified to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code F29.

Impact

Clinical: May lead to inappropriate treatment plans., Regulatory: Increases risk of audit failures., Financial: Potential for reduced reimbursement.

Mitigation Strategy

Include toxicology results in documentation, Clearly state exclusion of substance use

Impact

Reimbursement: May lead to lower reimbursement rates., Compliance: Increases risk of audit and compliance issues., Data Quality: Affects accuracy of clinical data.

Mitigation Strategy

Ensure comprehensive assessment and documentation to identify specific psychotic disorders.

Impact

Increased scrutiny on the use of unspecified codes like F29.

Mitigation Strategy

Provide detailed documentation and rationale for using unspecified codes.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Psychosis Not Otherwise Specified, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Psychosis Not Otherwise Specified

Use these documentation templates to ensure complete and accurate documentation for Psychosis Not Otherwise Specified. These templates include all required elements for proper coding and billing.

First-episode psychosis in emergency room

Specialty: Psychiatry

Required Elements

  • Symptom description
  • Functional impairment
  • Exclusion of other disorders
  • Negative toxicology results

Example Documentation

Patient presents with auditory hallucinations and paranoid delusions. Symptoms do not meet criteria for schizophrenia or mood disorder. Toxicology screen negative.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient is psychotic.
Good Documentation Example
Patient exhibits auditory hallucinations and paranoid ideation. Symptoms do not meet criteria for schizophrenia or mood disorder. Toxicology screen negative.
Explanation
The good example provides specific symptoms and excludes other disorders, supporting the use of F29.

Need help with ICD-10 coding for Psychosis Not Otherwise Specified? Ask your questions below.

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