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Home/Diagnosis/ICD-10 Coding for Acute Delirium

ICD-10 Coding for Acute Delirium

F05
F05.9

Complete ICD-10-CM coding and documentation guide for icd-10 coding for acute delirium includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Acute Confusional State
Acute Brain Syndrome
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Key Information: ICD-10 Coding for Acute Delirium

Essential facts and insights about ICD-10 Coding for Acute Delirium

Use ICD-10 code F05 for delirium due to known physiological condition, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Delirium due to known physiological condition

Billable Code
F05
Billable

Diagnostic Criteria

clinical:
  • • CAM criteria met with documented physiological cause
coding:
  • • Underlying cause coded first

Applicable To

  • • Acute confusional state
  • • Acute brain syndrome

Important Notes

  • • Ensure CAM criteria are documented to support F05 coding.

Delirium, unspecified

Non-Billable
F05.9
Non-Billable

Diagnostic Criteria

clinical:
  • • CAM criteria met
  • • No specific cause identified

Applicable To

  • • Delirium NOS

Important Notes

  • • Query provider if a cause is suspected but not documented.
Ancillary Codes

Additional codes that may be used with this diagnosis

R41.0

Disorientation, unspecified

Use for isolated disorientation without full delirium.

Frequently Asked Questions

What is the ICD-10 code for acute delirium?

The ICD-10 code for acute delirium due to a known physiological condition is F05. If the cause is unspecified, use F05.9.

How do you document acute delirium?

Document acute delirium by including CAM criteria: acute onset, inattention, disorganized thinking, and altered consciousness, along with the underlying cause.

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