H01.121 (Discoid lupus erythematosus of right upper eyelid) compared with H01.124 (Discoid lupus erythematosus of left upper eyelid), from the official CMS tabular data. H01.121 and H01.124 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. H01.121 and H01.124 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.
| H01.121Discoid lupus erythematosus of right upper eyelid | H01.124Discoid lupus erythematosus of left upper eyelid | |
|---|---|---|
| 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 | Discoid lupus erythematosus of right upper eyelid is a billable ICD-10-CM diagnosis code (H01.121). | Discoid lupus erythematosus of left upper eyelid is a billable ICD-10-CM diagnosis code (H01.124). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources