E30.1 vs Q78.1
E30.1 (Precocious puberty) compared with Q78.1 (Polyostotic fibrous dysplasia), 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. E30.1 carries an Excludes1 note covering Q78.1: “Albright (-McCune) (-Sternberg) syndrome (Q78.1)”
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
| E30.1Precocious puberty | Q78.1Polyostotic fibrous dysplasia | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Precocious puberty is a billable ICD-10-CM diagnosis code (E30.1). | Polyostotic fibrous dysplasia is a billable ICD-10-CM diagnosis code (Q78.1). |
| Includes | Precocious menstruation | Albright(-McCune)(-Sternberg) syndrome |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources