F09
BillableUnspecified mental disorder due to known physiological condition
F09 is the ICD-10-CM code for Unspecified mental disorder due to known physiological condition. It is a billable, specific code valid for reimbursement.
- Status
- Billable
- Chapter
- F01-F99
- Edition
- FY2026
F01-F99 Mental, Behavioral and Neurodevelopmental disorders
What this means — in plain language
MedlinePlus · NIHWhat are mental disorders? Mental disorders (or mental illnesses) are conditions that affect your thinking, feeling, mood, and behavior. They may happen over a short period of time or come and go. Some can be chronic (long-lasting). They can affect your ability to relate to others and function each day.. What are some types of mental disorders? There are many different types of mental disorders. Some common ones…
Read more about Mental Disorders at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Mental disorder NOS due to known physiological condition
- •Organic brain syndrome NOS
- •Organic mental disorder NOS
- •Organic psychosis NOS
- •Symptomatic psychosis NOS
Excludes1 — not coded here
Code first
- •the underlying physiological condition
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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