E76.0 vs Q77
E76.0 (Mucopolysaccharidosis, type I) compared with Q77 (Osteochondrodysplasia with defects of growth of tubular bones and spine), 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. Q77 carries an Excludes1 note covering E76.0: “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
| E76.0Mucopolysaccharidosis, type I | Q77Osteochondrodysplasia with defects of growth of tubular bones and spine | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Mucopolysaccharidosis, type I is a non-billable ICD-10-CM category code (E76.0). | Osteochondrodysplasia with defects of growth of tubular bones and spine is a non-billable ICD-10-CM category code (Q77). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources