H21.40 (Pupillary membranes, unspecified eye) compared with H21.41 (Pupillary membranes, right eye), from the official CMS tabular data. H21.40 and H21.41 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. H21.40 and H21.41 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.
| H21.40Pupillary membranes, unspecified eye | H21.41Pupillary membranes, 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 | Pupillary membranes, unspecified eye is a billable ICD-10-CM diagnosis code (H21.40). | Pupillary membranes, right eye is a billable ICD-10-CM diagnosis code (H21.41). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources