E66.01 diagnosis code · Billable code · FY2027
E66.01 Morbid (severe) obesity due to excess calories
- Billable
- Not CC/MCC
- HCC 48
- POA reported
E66.01 ICD-10 code: a billable diagnosis code in FY2027, one of 10 billable codes in category E66.
Where it sits
- Chapter 4 Endocrine, nutritional and metabolic diseases (E00-E89)
- E65-E68 Overweight, obesity and other hyperalimentation (E65-E68)
- E66 Overweight and obesity
- E66.0 Obesity due to excess calories
- E66.01 Morbid (severe) obesity due to excess calories
- CC / MCC
- Neither
- MS-DRG
- 640-641
- HCC V28
- 48
- POA
- Reported
- Code Editor
- –
- Index entries
- 5
Instructions
At E66.01
Excludes1
- morbid (severe) obesity with alveolar hypoventilation (E66.2) E66.2
Notes that also apply
Excludes2 from E66
Code first from E66
- obesity complicating pregnancy, childbirth and the puerperium, if applicable (O99.21-) O99.21
Use additional code from E66
Chapter 4 instructions (Notes 1, Excludes1 1): printed on the chapter 4 page.
Index entries
NCHS Alphabetic Index. Index first, then the Tabular List.
Medicare grouping and edits
| CC / MCC | Neither |
|---|---|
| Appendix B | MDC 10 Endocrine, Nutritional and Metabolic Diseases and Disorders, MS-DRG 640-641 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC…) |
| Code Editor | – |
| POA | Reported |
| HCC V28 | HCC 48 Morbid Obesity |
CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.