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ICD-10-CM Codes
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E00-E89
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E65-E68
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E66-
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2023 ICD-10-CM Diagnosis Code E66.2
2023 ICD-10-CM Diagnosis Code E66.2
Morbid (severe) obesity with alveolar hypoventilation
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- E66.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM E66.2 became effective on October 1, 2022.
- This is the American ICD-10-CM version of E66.2 - other international versions of ICD-10 E66.2 may differ.
Applicable To- Obesity hypoventilation syndrome (OHS)
- Pickwickian syndrome
The following code(s) above
E66.2 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
E66.2:
- Extreme obesity with alveolar hypoventilation
- Pickwickian syndrome
Clinical Information
- Hypoventilation syndrome in very obese persons with excessive adipose tissue around the abdomen and diaphragm. It is characterized by diminished to absent ventilatory chemoresponsiveness; chronic hypoxia; hypercapnia; polycythemia; and long periods of sleep during day and night (hypersomnolence). It is a condition often related to obstructive sleep apnea but can occur separately.
ICD-10-CM E66.2 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 205 Other respiratory system diagnoses with mcc
- 206 Other respiratory system diagnoses without mcc
Convert E66.2 to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
Code annotations containing back-references to E66.2:
- Obesity E66.9
ICD-10-CM Diagnosis Code E66.9
Obesity, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Questionable As Admission Dx
- morbid E66.01
ICD-10-CM Diagnosis Code E66.01
Morbid (severe) obesity due to excess calories
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Type 1 Excludes- morbid (severe) obesity with alveolar hypoventilation (E66.2)
- with
- alveolar hypoventilation E66.2
- obesity hypoventilation syndrome E66.2 (OHS)
- with alveolar hypoventilation E66.2
- hypoventilation syndrome E66.2 (OHS)
- OHS E66.2 (obesity hypoventilation syndrome)
- Pickwickian syndrome E66.2
- Syndrome - see also Disease
- alveolar hypoventilation E66.2
- cardiopulmonary-obesity E66.2
- hypoventilation, obesity E66.2 (OHS)
- obesity hypoventilation E66.2 (OHS)
- Pickwickian E66.2
ICD-10-CM Codes Adjacent To E66.2
E64.2 Sequelae of vitamin C deficiency
E64.3 Sequelae of rickets
E64.8 Sequelae of other nutritional deficiencies
E64.9 Sequelae of unspecified nutritional deficiency
E66 Overweight and obesity
E66.0 Obesity due to excess calories
E66.01 Morbid (severe) obesity due to excess calories
E66.09 Other obesity due to excess calories
E66.1 Drug-induced obesity
E66.2
Morbid (severe) obesity with alveolar hypoventilation
E66.9 Obesity, unspecified
E67 Other hyperalimentation
E67.2 Megavitamin-B6 syndrome
E67.8 Other specified hyperalimentation
E68 Sequelae of hyperalimentation
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
