T86.8401 (Corneal transplant rejection, right eye) compared with T86.8409 (Corneal transplant rejection, unspecified eye), from the official CMS tabular data. T86.8401 and T86.8409 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. T86.8401 and T86.8409 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.
| T86.8401Corneal transplant rejection, right eye | T86.8409Corneal transplant rejection, unspecified eye | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Corneal transplant rejection, right eye is a billable ICD-10-CM diagnosis code (T86.8401). | Corneal transplant rejection, unspecified eye is a billable ICD-10-CM diagnosis code (T86.8409). |
| Use additional code | code to identify other transplant complications, such as: graft-versus-host disease (D89.81-) malignancy associated with organ transplant (C80.2) | code to identify other transplant complications, such as: graft-versus-host disease (D89.81-) malignancy associated with organ transplant (C80.2) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources