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ICD-10 Guide
ICD-10 CodesR41.85

R41.85

Anosognosia

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R41.85 is a billable code used to indicate a diagnosis of anosognosia.

Key Diagnostic Point:

Anosognosia is a neurological condition characterized by a lack of awareness or denial of one's own illness or disability. It is often observed in patients with brain injuries, particularly those affecting the right hemisphere, and can manifest in various forms, such as the inability to recognize hemiplegia or cognitive deficits. Patients may exhibit a profound unawareness of their condition, leading to non-compliance with treatment and rehabilitation efforts. This condition is not merely a psychological denial but is rooted in neurological dysfunction, where the brain fails to process information about the illness. Anosognosia can complicate the management of neurological disorders, as patients may not seek help or adhere to prescribed therapies. The condition is often assessed through clinical interviews and cognitive assessments, where discrepancies between patient self-reports and clinical observations are noted. Understanding anosognosia is crucial for healthcare providers to tailor interventions that encourage patient engagement and compliance.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and severity of anosognosia.
  • Need for comprehensive clinical documentation to support diagnosis.
  • Differentiation from other cognitive impairments or psychological conditions.
  • Potential overlap with other neurological diagnoses.

Audit Risk Factors

  • Inadequate documentation of the patient's lack of awareness.
  • Failure to differentiate from other cognitive disorders.
  • Insufficient clinical evidence supporting the diagnosis.
  • Misuse of the code in cases where awareness is present.

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed patient history, cognitive assessments, and evidence of lack of awareness.

Common Clinical Scenarios

Patients with stroke or traumatic brain injury presenting with unawareness of their deficits.

Billing Considerations

Consider the impact of comorbid conditions on the patient's cognitive status.

Emergency Medicine

Documentation Requirements

Acute assessment findings, including neurological evaluations and patient interactions.

Common Clinical Scenarios

Patients presenting after a fall or accident with neurological deficits but denying symptoms.

Billing Considerations

Rapid assessment is crucial; document any discrepancies between patient reports and clinical findings.

Coding Guidelines

Inclusion Criteria

Use R41.85 When
  • Follow official ICD
  • 10 guidelines for coding symptoms and signs, ensuring that the diagnosis is supported by clinical documentation and assessments

Exclusion Criteria

Do NOT use R41.85 When
No specific exclusions found.

Related CPT Codes

96116CPT Code

Neuropsychological testing

Clinical Scenario

Used when assessing cognitive deficits in patients with suspected anosognosia.

Documentation Requirements

Document the rationale for testing and findings.

Specialty Considerations

Neuropsychologists should provide detailed reports linking findings to anosognosia.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like anosognosia, improving the accuracy of clinical data and enhancing treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like anosognosia, improving the accuracy of clinical data and enhancing treatment planning.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like anosognosia, improving the accuracy of clinical data and enhancing treatment planning.

Resources

Clinical References

  • •
    Anosognosia: A Review

Coding & Billing References

  • •
    Anosognosia: A Review

Frequently Asked Questions

What is anosognosia?

Anosognosia is a condition where a person is unaware of their own illness or disability, often due to neurological impairment.

How is anosognosia diagnosed?

Diagnosis is based on clinical assessments, patient interviews, and observations of discrepancies between self-reports and clinical findings.