S04.21 Injury of trochlear nerve, right side
Non-billable header ICD10CM Release FY2026
Version history
| Release | Valid from | Valid to | Description | Billable |
|---|---|---|---|---|
| FY2026 | 2025-10-01 | current | Injury of trochlear nerve, right side | no |
Related codes in S04
- S04 Injury of cranial nerve
- S04.0 Injury of optic nerve and pathways
- S04.01 Injury of optic nerve
- S04.011 Injury of optic nerve, right eye
- S04.011A Injury of optic nerve, right eye, initial encounter
- S04.011D Injury of optic nerve, right eye, subsequent encounter
- S04.011S Injury of optic nerve, right eye, sequela
- S04.012 Injury of optic nerve, left eye
- S04.012A Injury of optic nerve, left eye, initial encounter
- S04.012D Injury of optic nerve, left eye, subsequent encounter
- S04.012S Injury of optic nerve, left eye, sequela
- S04.019 Injury of optic nerve, unspecified eye
- S04.019A Injury of optic nerve, unspecified eye, initial encounter
- S04.019D Injury of optic nerve, unspecified eye, subsequent encounter
- S04.019S Injury of optic nerve, unspecified eye, sequela
- S04.02 Injury of optic chiasm
- S04.02XA Injury of optic chiasm, initial encounter
- S04.02XD Injury of optic chiasm, subsequent encounter
- S04.02XS Injury of optic chiasm, sequela
- S04.03 Injury of optic tract and pathways