F29

HCC Category Mapping

What This Code Means

This code describes a mental health condition where a person experiences psychotic symptoms (such as hallucinations, delusions, or disorganized thinking) that cannot be attributed to drug use, alcohol, or a known medical condition. It is used when the specific type of psychosis cannot be determined or classified more precisely.

Coding Tips

• •Use F29 only when psychosis is documented but the underlying cause is unclear or cannot be specified; always investigate and document whether symptoms are related to substance use, medical conditions, or other psychotic disorders before assigning this code
• •This is a non-specific code; attempt to obtain more detailed clinical information to assign a more specific psychotic disorder code (such as F20-F28 range) when possible, as F29 may trigger additional documentation requests from payers

Clinical Significance

Unspecified psychosis not due to a substance or known physiological condition is used when a patient has documented psychotic symptoms but the specific type of psychotic disorder cannot be determined. This is often an early or provisional diagnosis used during initial evaluation. While it captures a high-value HCC, clinical best practice calls for working toward a more specific diagnosis (schizophrenia, delusional disorder, etc.) as the clinical picture clarifies over time.

Documentation Requirements

• ✓Documentation of psychotic symptoms (hallucinations, delusions, disorganized thinking/behavior)
• ✓Assessment by a qualified mental health professional
• ✓Documentation that substance-induced and medical causes have been considered or ruled out
• ✓Explanation of why a more specific psychotic disorder diagnosis cannot yet be assigned
• ✓Plan for ongoing evaluation to refine the diagnosis over time
• ✓Current treatment plan including any antipsychotic medications

Commonly Confused Codes