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Home/Diagnosis/ICD-10 Coding for Change in Mental Status

ICD-10 Coding for Change in Mental Status

R41.82
F05

Complete ICD-10-CM coding and documentation guide for icd-10 coding for change in mental status includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Altered Mental Status
Acute Confusion
AMS
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Key Information: ICD-10 Coding for Change in Mental Status

Essential facts and insights about ICD-10 Coding for Change in Mental Status

Use ICD-10 code R41.82 for altered mental status, unspecified, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Altered mental status, unspecified

Billable Code
R41.82
Billable

Diagnostic Criteria

clinical:
  • • No identifiable cause after 24-hour observation and negative workup.
coding:
  • • Use only when no specific diagnosis can be made.
documentation:
  • • Document detailed symptoms and negative findings.

Applicable To

  • • Acute confusion
  • • Transient mental status change

Important Notes

  • • R41.82 should not be used as a primary diagnosis if a more specific diagnosis is available.

Delirium due to known physiological condition

Billable Code
F05
Billable

Applicable To

  • • Acute confusional state
  • • Delirium NOS

Important Notes

  • • Always code the underlying cause of delirium first.
Ancillary Codes

Additional codes that may be used with this diagnosis

F03.90

Unspecified dementia without behavioral disturbance

Use when dementia is the underlying cause of altered mental status.

Frequently Asked Questions

What is the ICD-10 code for change in mental status?

The ICD-10 code for unspecified altered mental status is R41.82. It is used when no specific cause is identified after evaluation.

When should R41.82 be used?

Use R41.82 for altered mental status when no specific cause is identified after thorough evaluation and negative diagnostic findings.

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