E66 vs E88.2
E66 (Overweight and obesity) compared with E88.2 (Lipomatosis, not elsewhere classified), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. E66 carries an Excludes2 note covering E88.2: “lipomatosis dolorosa [Dercum] (E88.2)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. E66 carries an Excludes2 note covering E88.2: “lipomatosis NOS (E88.2)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| E66Overweight and obesity | E88.2Lipomatosis, not elsewhere classified | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) |
| Definition | Overweight and obesity is a non-billable ICD-10-CM category code (E66). | Lipomatosis, not elsewhere classified is a billable ICD-10-CM diagnosis code (E88.2). |
| Includes | — | Lipomatosis NOS Lipomatosis (Check) dolorosa [Dercum] |
| Use additional code | code to identify body mass index (BMI), if known, for adults (Z68.1-Z68.45) or pediatrics (Z68.5-) | codes for associated conditions |
| Code first | obesity complicating pregnancy, childbirth and the puerperium, if applicable (O99.21-) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources