ICD-10-CM Code for Steroid-Induced Psychosis
The appropriate ICD-10-CM code for steroid-induced psychosis is F19.959 (Other psychoactive substance use, unspecified with psychotic disorder, unspecified), though more specific coding may use F19.950 (with delusions) or F19.951 (with hallucinations) depending on the predominant symptom presentation.
Understanding the Coding Framework
Steroid-induced psychosis represents a secondary psychosis directly caused by drug-related side effects or toxicity, which falls under substance-induced psychotic disorders in the ICD-10-CM classification system 1. The American College of Radiology guidelines explicitly categorize drug-related intoxication, withdrawal, side effects, and toxicity as medical conditions that may present with psychotic symptoms 1.
Specific Code Selection
The coding approach depends on the clinical presentation:
- F19.950: Use when delusions are the predominant psychotic feature 1
- F19.951: Use when hallucinations are the predominant psychotic feature 1
- F19.959: Use when psychotic symptoms are present but neither delusions nor hallucinations clearly predominate 1
The "F19" category represents "other psychoactive substance use," which appropriately captures corticosteroids as the causative agent 2.
Clinical Context for Accurate Coding
Steroid-induced psychosis is a well-documented neuropsychiatric complication that can occur with both systemic and local corticosteroid administration 3, 4, 5. The condition typically manifests with:
- Cardinal features: Delusions and hallucinations as the two primary psychotic symptoms 1
- Preserved consciousness: Unlike delirium, awareness and level of consciousness remain intact in psychotic patients 1
- Additional symptoms: May include disorganized speech, abnormal motor behavior (including agitation or catatonia), anger, hostility, insomnia, and paranoia 1, 6
Important Coding Considerations
Exclude delirium: The diagnosis of steroid-induced psychosis should not be coded if symptoms are better explained by delirium (which involves inattention as a cardinal feature and fluctuating consciousness) 1. If delirium is present, different ICD-10-CM codes apply.
Document the causative agent: Clinical documentation should clearly identify corticosteroids as the precipitating factor, including the specific steroid type, dose, route of administration (oral, injection, epidural), and temporal relationship between steroid exposure and symptom onset 3, 4, 5, 6.
Timing considerations: Steroid-induced psychosis can occur shortly after treatment begins, at any point during therapy, or even after treatment has stopped 3. Symptoms typically resolve within 7-17 days after dose reduction or discontinuation combined with appropriate pharmacological intervention 4, 6.
Common Pitfalls to Avoid
Do not use primary psychosis codes (F20-F29 for schizophrenia-spectrum disorders) when corticosteroids are the clear precipitating cause 1. These codes are reserved for psychiatric disorders like schizophrenia, bipolar disorder, or schizoaffective disorder where psychotic symptoms are not directly attributable to a medical cause 1.
Avoid coding as "unspecified psychosis" without documenting the substance-induced etiology, as this loses critical information about the reversible nature of the condition and its specific treatment requirements 4.
Consider additional codes: Depending on institutional requirements, you may need to add a code for the underlying condition being treated with steroids (e.g., pain, inflammatory condition) and potentially an adverse effect code (T38.0X5A for adverse effect of glucocorticoids and synthetic analogues, initial encounter) 3, 5.