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Home/Diagnosis/ICD-10 Coding for Morbid Obesity

ICD-10 Coding for Morbid Obesity

E66.01
E66.2

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

Also Known as:
Severe Obesity
Extreme Obesity
obesity class iii
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Key Information: ICD-10 Coding for Morbid Obesity

Essential facts and insights about ICD-10 Coding for Morbid Obesity

Use ICD-10 code E66.01 for morbid (severe) obesity due to excess calories, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Morbid (severe) obesity due to excess calories

Billable Code
E66.01
Billable

Diagnostic Criteria

clinical:
  • • BMI ≥40 or BMI ≥35 with comorbidities
documentation:
  • • Provider must document 'morbid obesity'

Applicable To

  • • Morbid obesity with BMI ≥40
  • • Morbid obesity with BMI ≥35 and comorbidities

Important Notes

  • • Ensure provider documentation explicitly states 'morbid obesity' for accurate coding.

Morbid obesity with alveolar hypoventilation

Billable Code
E66.2
Billable

Diagnostic Criteria

clinical:
  • • Daytime hypercapnia (PaCO2 ≥45 mmHg) with BMI ≥30

Applicable To

  • • Obesity hypoventilation syndrome

Important Notes

  • • Ensure documentation supports both obesity and hypoventilation.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z68.41

BMI 40.0-44.9, adult

Use to specify BMI when coding morbid obesity.

Frequently Asked Questions

What is the ICD-10 code for morbid obesity?

The ICD-10 code for morbid obesity due to excess calories is E66.01. It requires documentation of 'morbid obesity' and a BMI of 40 or higher, or 35 with comorbidities.

How do you code morbid obesity with hypoventilation?

For morbid obesity with alveolar hypoventilation, use ICD-10 code E66.2. Ensure documentation supports both obesity and hypoventilation.

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