H47.521 (Disorders of visual pathways in (due to) neoplasm, right side) compared with H47.529 (Disorders of visual pathways in (due to) neoplasm, unspecified side), from the official CMS tabular data. H47.521 and H47.529 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. H47.521 and H47.529 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.
| H47.521Disorders of visual pathways in (due to) neoplasm, right side | H47.529Disorders of visual pathways in (due to) neoplasm, unspecified side | |
|---|---|---|
| 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 | Disorders of visual pathways in (due to) neoplasm, right side is a billable ICD-10-CM diagnosis code (H47.521). | Disorders of visual pathways in (due to) neoplasm, unspecified side is a billable ICD-10-CM diagnosis code (H47.529). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources