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ICD-10 Guide
ICD-10 CodesR40.211

R40.211

Billable

Coma scale, eyes open, never

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

Code Description

ICD-10 R40.211 is a billable code used to indicate a diagnosis of coma scale, eyes open, never.

Key Diagnostic Point:

R40.211 refers to a specific condition where a patient exhibits a coma scale response characterized by never having the ability to open their eyes. This condition is indicative of a severe level of unconsciousness, often associated with significant neurological impairment. Patients with this diagnosis may have suffered from various etiologies, including traumatic brain injury, stroke, or severe metabolic disturbances. The absence of eye-opening responses suggests a profound level of impairment in brain function, particularly in the brainstem, which is responsible for basic life functions and arousal. Clinicians often assess the Glasgow Coma Scale (GCS) to determine the level of consciousness, and a score of 3 (the lowest possible score) indicates no eye opening, verbal response, or motor response. This diagnosis is critical for determining prognosis and guiding treatment decisions, as well as for understanding the potential for recovery or the need for palliative care.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Requires precise documentation of neurological status.
  • Differentiation from other coma states can be challenging.
  • Potential for misclassification with other coma-related codes.
  • Need for comprehensive clinical context to support coding.

Audit Risk Factors

  • Inadequate documentation of neurological assessments.
  • Failure to specify the underlying cause of coma.
  • Misuse of related codes leading to incorrect billing.
  • Inconsistent clinical findings not aligning with coded diagnosis.

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed neurological assessments, including GCS scores and any relevant imaging or lab results.

Common Clinical Scenarios

Patients presenting with altered mental status due to metabolic derangements or infections.

Billing Considerations

Ensure that all contributing factors to the coma are documented, including history and physical examination findings.

Emergency Medicine

Documentation Requirements

Acute care documentation must include initial GCS assessment, vital signs, and any immediate interventions.

Common Clinical Scenarios

Acute presentations of head trauma, overdose, or severe infections leading to altered consciousness.

Billing Considerations

Rapid assessment and documentation are crucial; ensure that all findings are recorded promptly to support coding.

Coding Guidelines

Inclusion Criteria

Use R40.211 When
  • According to ICD
  • 10 coding guidelines, R40
  • 211 should be used when the patient has a documented history of never opening their eyes in response to stimuli
  • It is essential to include the underlying cause of the coma when available, as this may affect treatment and prognosis

Exclusion Criteria

Do NOT use R40.211 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99291CPT Code

Critical care, evaluation and management of the critically ill patient

Clinical Scenario

Used when managing a patient with R40.211 in an ICU setting.

Documentation Requirements

Document time spent in critical care and details of the patient's condition.

Specialty Considerations

Critical care documentation must reflect the severity of the patient's condition.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of coma states, improving the accuracy of patient records and facilitating better clinical decision-making. R40.211 provides a clear indication of a patient's level of consciousness, which is crucial for treatment planning and prognosis.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of coma states, improving the accuracy of patient records and facilitating better clinical decision-making. R40.211 provides a clear indication of a patient's level of consciousness, which is crucial for treatment planning and prognosis.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of coma states, improving the accuracy of patient records and facilitating better clinical decision-making. R40.211 provides a clear indication of a patient's level of consciousness, which is crucial for treatment planning and prognosis.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the significance of R40.211 in clinical practice?

R40.211 is significant as it indicates a severe level of unconsciousness, which is critical for determining treatment options and prognosis. Accurate coding helps in understanding the patient's condition and planning appropriate care.