E74 vs E76.3
E74 (Other disorders of carbohydrate metabolism) compared with E76.3 (Mucopolysaccharidosis, unspecified), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. E74 carries an Excludes1 note covering E76.3: “mucopolysaccharidosis (E76.0-E76.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| E74Other disorders of carbohydrate metabolism | E76.3Mucopolysaccharidosis, unspecified | |
|---|---|---|
| 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 | Other disorders of carbohydrate metabolism is a non-billable ICD-10-CM category code (E74). | Mucopolysaccharidosis, unspecified is a billable ICD-10-CM diagnosis code (E76.3). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources