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ICD-10 Guide
ICD-10 CodesE66.8

E66.8

Billable

Other obesity

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 E66.8 is a billable code used to indicate a diagnosis of other obesity.

Key Diagnostic Point:

E66.8 refers to 'Other obesity,' which encompasses various forms of obesity that do not fall under the more specific categories defined in the ICD-10 coding system. Obesity is characterized by an excessive accumulation of body fat, which can lead to significant health complications. The classification of obesity is often determined by Body Mass Index (BMI), a measure calculated by dividing a person's weight in kilograms by the square of their height in meters (kg/m²). A BMI of 30 or higher is generally classified as obese. Other obesity may include conditions such as obesity due to specific genetic syndromes, drug-induced obesity, or obesity due to other underlying health issues. The management of obesity often involves a multidisciplinary approach, including dietary changes, physical activity, behavioral therapy, and sometimes pharmacotherapy or surgical interventions. Obesity is associated with numerous complications, including type 2 diabetes, cardiovascular diseases, certain cancers, and musculoskeletal disorders. Accurate coding of obesity is crucial for appropriate treatment planning and reimbursement, as it reflects the complexity of the patient's health status and the need for comprehensive care.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes for obesity that may require detailed documentation.
  • Need for precise BMI calculations and interpretations.
  • Potential overlap with other obesity-related codes.
  • Variability in treatment approaches based on the underlying cause.

Audit Risk Factors

  • Inadequate documentation of the underlying cause of obesity.
  • Failure to document BMI measurements.
  • Lack of evidence for obesity-related complications.
  • Inconsistent coding of obesity-related conditions.

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed patient history, including BMI, comorbidities, and treatment plans.

Common Clinical Scenarios

Management of obesity due to hormonal imbalances or genetic syndromes.

Billing Considerations

Endocrinologists must document the specific cause of obesity to justify the use of E66.8.

Nutrition

Documentation Requirements

Comprehensive dietary assessments and weight management plans.

Common Clinical Scenarios

Patients seeking dietary interventions for obesity management.

Billing Considerations

Nutritionists should ensure that the documentation reflects the patient's obesity classification and any related health issues.

Coding Guidelines

Inclusion Criteria

Use E66.8 When
  • According to ICD
  • 10 coding guidelines, E66
  • 8 should be used when the specific type of obesity is not classified elsewhere
  • Coders must ensure that the documentation supports the diagnosis and that any related conditions are also coded appropriately

Exclusion Criteria

Do NOT use E66.8 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

97802CPT Code

Medical nutrition therapy, individual, face-to-face

Clinical Scenario

Used for patients receiving dietary counseling for obesity management.

Documentation Requirements

Documentation of the patient's obesity classification and treatment goals.

Specialty Considerations

Nutritionists should ensure that the treatment plan aligns with the obesity diagnosis.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of obesity-related conditions, improving the accuracy of health records and reimbursement processes. E66.8 provides a means to capture cases of obesity that do not fit into more defined categories, ensuring that patients receive appropriate care.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of obesity-related conditions, improving the accuracy of health records and reimbursement processes. E66.8 provides a means to capture cases of obesity that do not fit into more defined categories, ensuring that patients receive appropriate care.

Reimbursement & Billing Impact

reimbursement processes. E66.8 provides a means to capture cases of obesity that do not fit into more defined categories, ensuring that patients receive appropriate care.

Resources

Clinical References

  • •
    Obesity Management: A Guide for Healthcare Providers

Coding & Billing References

  • •
    Obesity Management: A Guide for Healthcare Providers

Frequently Asked Questions

When should I use E66.8 instead of more specific obesity codes?

E66.8 should be used when the specific cause of obesity is not documented or when the obesity does not fit into the more defined categories. Ensure that the documentation supports the use of this code.