Unsp mental disorder due to known physiological condition

This code signifies a mental disorder where the specific type of psychiatric condition cannot be determined, but it is definitively caused by an underlying medical condition or substance. It represents a broad category for mental health symptoms that are secondary to a physiological etiology, without a more precise psychiatric diagnosis.

Use this code when documentation clearly links a mental disorder to a known physiological condition (e.g., traumatic brain injury, endocrine disorder, neurological disease, or substance use), but the specific mental disorder (e.g., psychotic disorder, mood disorder) is not specified. This code is appropriate when the clinician has identified a physiological cause but has not yet fully characterized the resulting mental health presentation.

• Ensure the medical record explicitly states a physiological condition as the cause of the mental disorder.
• Avoid using this code if a more specific mental disorder due to a known physiological condition (e.g., F06.3- for mood disorder due to physiological condition) can be identified.
• Always sequence the underlying physiological condition code first, followed by this code, to accurately reflect the etiology.