F06
ICD-10Non-billable categoryOther mental disorders due to known physiological condition
Official ICD-10-CM descriptor (FY2026)
Other mental disorders due to known physiological condition
F06 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- mental disorders due to endocrine disorder
- mental disorders due to exogenous hormone
- mental disorders due to exogenous toxic substance
- mental disorders due to primary cerebral disease
- mental disorders due to somatic illness
- mental disorders due to systemic disease affecting the brain
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- unspecified dementia (F03.-)
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- delirium due to known physiological condition (F05)
- dementia as classified in F01-F02
- other mental disorders associated with alcohol and other psychoactive substances (F10-F19)
Code first
Sequence the underlying condition before this code.
- the underlying physiological condition
More specific codes under F06
- F06.0Psychotic disorder w hallucin due to known physiol condition
- F06.1Catatonic disorder due to known physiological condition
- F06.2Psychotic disorder w delusions due to known physiol cond
- F06.3Mood disorder due to known physiological conditioncategory
- F06.4Anxiety disorder due to known physiological condition
- F06.7Mild neurocog disorder due to known physiological conditioncategory
- F06.8Oth mental disorders due to known physiological condition
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.