AutoICD API

F05

Billable

Delirium due to known physiological condition

Delirium due to known physiological condition

Status

Billable / Specific

Block

F01-F09

ICD-11 Mapping

1 equivalent

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • 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

Includes

Conditions included under this code

  • disorders of psychological development

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Code First

The underlying condition must be sequenced before this code

ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

6D70.ZDelirium, unspecified or unknown causeequivalentPrimary
Also Known As / Clinical Terms(98)

SNOMED CT

UMLS

Clinical Terms

  • Hyperkinesia
  • Delirium co-occurrent with dementia (disorder)
  • Delirium superimposed on dementia
  • Delirium of mixed origin
  • Hyperactive behaviour
  • Increased purposeful goal-directed activity
  • Postoperative confusion
  • Postepileptic delirium
  • Hyperkinesis
  • Acute or subacute confusional state (nonalcoholic)
  • Postepileptic confusion
  • Acute confusional state, of metabolic origin
  • Mixed hyperactive hypoactive delirium following surgical procedure
  • Acute or subacute infective psychosis
  • sundown
  • Delirium due to hepatic encephalopathy
  • Hypoactive delirium following surgical procedure
  • Senile delirium
  • Senile dementia with delirium
  • Delirium following surgical procedure
  • Postseizure delirium
  • Delirium of mixed etiology
  • Acute confusional state, of endocrine origin
  • sundowning
  • sun down
  • Postseizure confusion
  • Hyperactive behavior
  • sun downing
  • Delirium co-occurrent with dementia
  • Acute or subacute brain syndrome
  • Sundowning (finding)
  • Hyperactive delirium following surgical procedure
  • PDSS - post-injection delirium sedation syndrome
  • HA - Hyperactivity
  • Acute or subacute organic reaction
  • Acute or subacute psycho-organic syndrome
  • Postoperative delirium
  • Hyperactive postoperative delirium
  • Mixed hyperactive hypoactive postoperative delirium
  • Postictal confusion
  • Acute confusional state, of infective origin
  • Hypoactive postoperative delirium
  • Toxic confusional state
  • Acute confusional state, post-traumatic
  • Sundown syndrome
  • Postictal delirium
  • Post-injection delirium sedation syndrome
Frequently Asked Questions
What is the ICD-10 code for delirium due to known physiological condition?

The ICD-10-CM code for delirium due to known physiological condition is F05. The full clinical description is "Delirium due to known physiological condition". F05 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code F05 mean?

ICD-10-CM code F05 represents “Delirium due to known physiological condition”. It is classified under Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders and is a billable/specific code that can be used on a claim.

Is F05 a billable code?

Yes, F05 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is F05 in?

F05 is in Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (codes F01-F99).

What codes cannot be used with F05?

F05 has Excludes1 notes indicating codes that cannot be used together with it, including: delirium NOS (R41.0).

What SNOMED CT codes does F05 map to?

F05 maps to 18 SNOMED CT concepts: 191503003, 191502008, 191504009, 191501001, 232534061000119102, and 13 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for F05?

F05 is linked to 9 UMLS Concept Unique Identifiers: C1399605, C2874337, C2874338, C2874339, C1405604, and 4 more. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does F05 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like delirium due to known physiological condition affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of F05?

F05 maps to the ICD-11 code: 6D70.Z (Delirium, unspecified or unknown cause).

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.