F05
BillableDelirium due to known physiological condition
F05 is the ICD-10-CM code for Delirium 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
Includes
- •Acute or subacute brain syndrome
- •Acute or subacute confusional state (nonalcoholic)
- •Acute or subacute infective psychosis
- •Acute or subacute organic reaction
- •Acute or subacute psycho-organic syndrome
- •Delirium of mixed etiology
- •Delirium superimposed on dementia
- •Sundowning
Excludes1 — not coded here
- •delirium NOS (R41.0)
Code first
- •the underlying physiological condition, such as:
- •dementia (F03.9-)
Frequently asked questions
- What is ICD-10 code F05?
- F05 is the ICD-10-CM code for "Delirium due to known physiological condition". It falls under F01-F99 Mental, Behavioral and Neurodevelopmental disorders.
- Is F05 a billable code?
- Yes — F05 is a billable, specific ICD-10-CM code valid for reimbursement.
- What is excluded from F05?
- Excludes1 (not coded here): delirium NOS (R41.0).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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