G60.1 vs Q80
G60.1 (Refsum's disease) compared with Q80 (Congenital ichthyosis), 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. Q80 carries an Excludes1 note covering G60.1: “Refsum's disease (G60.1)”
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
| G60.1Refsum's disease | Q80Congenital ichthyosis | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Refsum's disease is a billable ICD-10-CM diagnosis code (G60.1). | Congenital ichthyosis is a non-billable ICD-10-CM category code (Q80). |
| Includes | Infantile Refsum disease | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources