E66.2: Morbid (severe) obesity with alveolar hypoventilation
E66.2 is a billable, specific ICD-10-CM code for morbid (severe) obesity with alveolar hypoventilation. It is valid for submission on a claim.
Check E66.2 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Obesity hypoventilation syndrome (OHS)
- Pickwickian syndrome
Other codes that can never be billed with E66.2
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
E66.2 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 48 Morbid Obesity0.186 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
E66.2 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56422Billing and Coding: Bariatric Surgical Management of Morbid Obesity
- A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
- A56923Billing and Coding: Outpatient Sleep Studies
- A57145Billing and Coding: Surgical Management of Morbid Obesity
Alphabetic index entries that lead here
- OHS(obesity hypoventilation syndrome)
- Pickwickian syndrome
- Obesity›hypoventilation syndrome(OHS)
- Obesity›with alveolar hypoventilation
- Syndrome›alveolar hypoventilation
- Syndrome›cardiopulmonary-obesity
- Syndrome›hypoventilation, obesity(OHS)
- Syndrome›obesity hypoventilation(OHS)
- Syndrome›Pickwickian
- Obesity›morbid›with›alveolar hypoventilation
- Obesity›morbid›with›obesity hypoventilation syndrome(OHS)
The condition this code belongs to
Code history
Unchanged in every release from FY2024 to FY2027.