F09 - Unspecified mental disorder due to known physiological condition
ICD-10-CM Chapter 5: Mental, Behavioral and Neurodevelopmental disorders · F01-F09 Mental disorders due to known physiological conditions (F01-F09) · Top-level category · FY2027
Inclusion terms listed under F09 in the ICD-10-CM tabular list.
- Mental disorder NOS due to known physiological condition
- Organic brain syndrome NOS
- Organic mental disorder NOS
- Organic psychosis NOS
- Symptomatic psychosis NOS
Includes, Excludes and Coding Notes
Mutually exclusive: these conditions are never reported together with this code.
- mild neurocognitive disorder due to known physiological condition (F06.7-)
- psychosis NOS (F29)
Sequence the underlying condition before this code.
- the underlying physiological condition
Instructional notes from the ICD-10-CM tabular list.
- This block comprises a range of mental disorders grouped together on the basis of their having in common a demonstrable etiology in cerebral disease, brain injury, or other insult leading to cerebral dysfunction. The dysfunction may be primary, as in diseases, injuries, and insults that affect the brain directly and selectively; or secondary, as in systemic diseases and disorders that attack the brain only as one of the multiple organs or systems of the body that are involved.
Conditions this code covers.
- disorders of psychological development
Not part of this code; report both codes when the patient has both conditions.
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Inpatient DRG Payments
Organic Disturbances And Intellectual Disability
Avg. Medicare Payment
$13,375
Hiv With Major Related Condition With Mcc
Avg. Medicare Payment
$29,027
Hiv With Major Related Condition With Cc
Avg. Medicare Payment
$13,978
Codes at the same level as F09
- Vascular dementiaF01
- Dementia in other diseases classified elsewhereF02
- Unspecified dementiaF03
- Amnestic disorder due to known physiological conditionF04
- Delirium due to known physiological conditionF05
- Other mental disorders due to known physiological conditionF06
- Personality and behavioral disorders due to known physiological conditionF07
- Alcohol related disordersF10
- Opioid related disordersF11
- Cannabis related disordersF12
- Sedative, hypnotic, or anxiolytic related disordersF13
- Cocaine related disordersF14
- Other stimulant related disordersF15
- Hallucinogen related disordersF16
- Nicotine dependenceF17
- Inhalant related disordersF18
- Other psychoactive substance related disordersF19
- SchizophreniaF20
- Schizotypal disorderF21
- Delusional disordersF22
- Brief psychotic disorderF23
- Shared psychotic disorderF24
- Schizoaffective disordersF25
- Other psychotic disorder not due to a substance or known physiological conditionF28
- Unspecified psychosis not due to a substance or known physiological conditionF29
- Manic episodeF30
- Bipolar disorderF31
- Depressive episodeF32
- Major depressive disorder, recurrentF33
- Persistent mood [affective] disordersF34
- Unspecified mood [affective] disorderF39
- Phobic anxiety disordersF40
- Other anxiety disordersF41
- Obsessive-compulsive disorderF42
- Reaction to severe stress, and adjustment disordersF43
- Dissociative and conversion disordersF44
- Somatoform disordersF45
- Other nonpsychotic mental disordersF48
- Eating disordersF50
- Sleep disorders not due to a substance or known physiological conditionF51
31 more in this chapter.