H33.1 vs Q14.1
H33.1 (Retinoschisis and retinal cysts) compared with Q14.1 (Congenital malformation of retina), 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. H33.1 carries an Excludes1 note covering Q14.1: “congenital retinoschisis (Q14.1)”
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
| H33.1Retinoschisis and retinal cysts | Q14.1Congenital malformation of retina | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | H00-H59 — Diseases of the Eye and Adnexa (H00-H59) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Retinoschisis and retinal cysts is a non-billable ICD-10-CM category code (H33.1). | Congenital malformation of retina is a billable ICD-10-CM diagnosis code (Q14.1). |
| Includes | — | Congenital retinal aneurysm |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources