F06.4
Anxiety disorder due to known physiological condition
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 7 never code together
F06code
F06.4code
F01-F99chapter
Excludes2
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)R00-R99
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 9
F06code
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
Code first
- the underlying physiological condition
F01-F09block
Notes
- 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.
F01-F99chapter
Includes
- disorders of psychological development
Index entries leading here 1
Alongside this code 6 same parent — F06
F06.0 Psychotic disorder w hallucin due to known physiol condition F06.1 Catatonic disorder due to known physiological condition F06.2 Psychotic disorder w delusions due to known physiol cond F06.3 Mood disorder due to known physiological condition category F06.7 Mild neurocog disorder due to known physiological condition category F06.8 Oth mental disorders due to known physiological condition
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.