H17.821 (Peripheral opacity of cornea, right eye) compared with H17.829 (Peripheral opacity of cornea, unspecified eye), from the official CMS tabular data. H17.821 and H17.829 code the same condition on opposite sides. MedCoder-derived
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. H17.821 and H17.829 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| H17.821Peripheral opacity of cornea, right eye | H17.829Peripheral opacity of cornea, unspecified eye | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | H00-H59 — Diseases of the eye and adnexa | H00-H59 — Diseases of the eye and adnexa |
| Definition | Peripheral opacity of cornea, right eye is a billable ICD-10-CM diagnosis code (H17.821). | Peripheral opacity of cornea, unspecified eye is a billable ICD-10-CM diagnosis code (H17.829). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources