H20.10 (Chronic iridocyclitis, unspecified eye) compared with H20.11 (Chronic iridocyclitis, right eye), from the official CMS tabular data. H20.10 and H20.11 code the same condition on opposite sides.
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. H20.10 and H20.11 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.
| H20.10Chronic iridocyclitis, unspecified eye | H20.11Chronic iridocyclitis, right eye | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | H00-H59 — Diseases of the Eye and Adnexa (H00-H59) | H00-H59 — Diseases of the Eye and Adnexa (H00-H59) |
| Definition | Chronic iridocyclitis, unspecified eye is a billable ICD-10-CM diagnosis code (H20.10). | Chronic iridocyclitis, right eye is a billable ICD-10-CM diagnosis code (H20.11). |
| Use additional code | code for any associated cataract (H26.21-) | code for any associated cataract (H26.21-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources