Delirium due to known physiological condition
Chapter 5:Mental, Behavioral and Neurodevelopmental disorders
ICD-10 F05 is a billable code used to indicate a diagnosis of delirium due to known physiological condition.
Delirium due to known physiological condition is a neurocognitive disorder characterized by an acute onset of confusion, disorientation, and cognitive impairment that is directly attributable to a medical condition. This condition can arise from various physiological factors, including infections, metabolic imbalances, substance intoxication or withdrawal, and neurological disorders. Patients may exhibit fluctuating levels of consciousness, altered attention, and perceptual disturbances. The diagnosis requires a thorough assessment to identify the underlying physiological cause, which may include laboratory tests and imaging studies. Delirium is often reversible if the underlying condition is treated promptly. However, it can lead to significant morbidity and mortality, particularly in vulnerable populations such as the elderly. Clinicians must differentiate delirium from other cognitive disorders, such as dementia, to ensure appropriate management and care.
Detailed psychiatric evaluation and history, including mental status examination and assessment of cognitive function.
Patients presenting with acute confusion in the context of hospitalization for medical conditions.
Psychiatrists must ensure that the delirium is not misdiagnosed as a primary psychiatric disorder.
Comprehensive medical history, physical examination, and laboratory results to identify the physiological cause.
Patients with infections, metabolic disturbances, or post-operative delirium.
Internal medicine specialists should document the timeline of symptom onset in relation to the medical condition.
Used when a patient with delirium is admitted for acute medical management.
Comprehensive documentation of the patient's condition, history, and treatment plan.
Internal medicine specialists should ensure that the medical necessity for hospitalization is clearly documented.
Delirium is an acute, often reversible condition characterized by confusion and altered consciousness, while dementia is a chronic, progressive decline in cognitive function. Delirium can occur in patients with dementia but is distinct in its presentation and underlying causes.
