H33.101 ICD-10-CM Code: Unspecified retinoschisis, right eye
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Inpatient Payment Groups (MS-DRG)
MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.
- MS-DRG 124 — OTHER DISORDERS OF THE EYE WITH MCC OR THROMBOLYTIC AGENT (MDC 02)
- MS-DRG 125 — OTHER DISORDERS OF THE EYE WITHOUT MCC (MDC 02)
A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Unspecified retinoschisis, right eye is a billable ICD-10-CM diagnosis code (H33.101).
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for H33.101 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- congenital retinoschisis (Q14.1)
- microcystoid degeneration of retina (H35.42-)
- detachment of retinal pigment epithelium (H35.72-, H35.73-)
Nearest Codes in This Family
Official ICD-10-CM classifications closest to H33.101 in its code family, with their registry titles.
- H33.052 — Total retinal detachment, left eye
- H33.053 — Total retinal detachment, bilateral
- H33.059 — Total retinal detachment, unspecified eye
- H33.1 — Retinoschisis and retinal cysts
- H33.10 — Unspecified retinoschisis
- H33.102 — Unspecified retinoschisis, left eye
- H33.103 — Unspecified retinoschisis, bilateral
- H33.109 — Unspecified retinoschisis, unspecified eye
- H33.11 — Cyst of ora serrata
- H33.111 — Cyst of ora serrata, right eye