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Home/Diagnosis/ICD-10 Coding for Brain Fog

ICD-10 Coding for Brain Fog

R41.89
G93.3
F48.8

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

Also Known as:
Cognitive Dysfunction
Mental Cloudiness
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Key Information: ICD-10 Coding for Brain Fog

Essential facts and insights about ICD-10 Coding for Brain Fog

Use ICD-10 code R41.89 for other symptoms and signs involving cognitive functions and awareness, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Other symptoms and signs involving cognitive functions and awareness

Billable Code
R41.89
Billable

Diagnostic Criteria

clinical:
  • • Presence of documented cognitive deficits
documentation:
  • • Detailed cognitive assessment results

Applicable To

  • • Cognitive dysfunction
  • • Memory impairment

Important Notes

  • • Ensure cognitive testing results are documented to support the use of R41.89.

Postviral fatigue syndrome

Non-Billable
G93.3
Non-Billable

Diagnostic Criteria

clinical:
  • • Chronic fatigue lasting more than 6 months
  • • Cognitive impairment

Applicable To

  • • Chronic fatigue syndrome

Important Notes

  • • Document the duration and impact of fatigue and cognitive symptoms.

Other specified neurotic disorders

Billable Code
F48.8
Billable

Diagnostic Criteria

clinical:
  • • Presence of neurotic symptoms with cognitive complaints

Applicable To

  • • Neurasthenia

Important Notes

  • • Ensure documentation of neurotic symptoms alongside cognitive complaints.
Ancillary Codes

Additional codes that may be used with this diagnosis

U09.9

Post COVID-19 condition, unspecified

Use as a secondary code when brain fog is related to a history of COVID-19.

Frequently Asked Questions

What is the ICD-10 code for brain fog?

The ICD-10 code for brain fog is R41.89, which covers other symptoms and signs involving cognitive functions and awareness.

How do you document brain fog in medical records?

Document brain fog by specifying cognitive deficits, using standardized tests like MoCA, and linking symptoms to conditions like post-COVID syndrome.

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