H59 vs T85.2
H59 (Intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified) compared with T85.2 (Mechanical complication of intraocular lens), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. H59 carries an Excludes1 note covering T85.2: “mechanical complication of intraocular lens (T85.2)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Yes, when both are documented. T85.2 carries an Excludes2 note covering H59: “intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| H59Intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified | T85.2Mechanical complication of intraocular lens | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header Report instead: T85.21XA, T85.21XD, T85.21XS, T85.22XA, T85.22XD |
| Classification | H00-H59 — Diseases of the Eye and Adnexa (H00-H59) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified is a non-billable ICD-10-CM category code (H59). | Mechanical complication of intraocular lens is a non-billable ICD-10-CM category code (T85.2). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T85 |
| Use additional code | — | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) code(s) to identify the specified condition resulting from the complication code to identify devices involved and details of circumstances (Y62-Y82) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources