T43.635A Adverse effect of methylphenidate, initial encounter
Billable / valid for submission ICD10CM Release FY2026
Version history
| Release | Valid from | Valid to | Description | Billable |
|---|---|---|---|---|
| FY2026 | 2025-10-01 | current | Adverse effect of methylphenidate, initial encounter | yes |
Related codes in T43
- T43 Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
- T43.0 Poisoning by, adverse effect of and underdosing of tricyclic and tetracyclic antidepressants
- T43.01 Poisoning by, adverse effect of and underdosing of tricyclic antidepressants
- T43.011 Poisoning by tricyclic antidepressants, accidental (unintentional)
- T43.011A Poisoning by tricyclic antidepressants, accidental (unintentional), initial encounter
- T43.011D Poisoning by tricyclic antidepressants, accidental (unintentional), subsequent encounter
- T43.011S Poisoning by tricyclic antidepressants, accidental (unintentional), sequela
- T43.012 Poisoning by tricyclic antidepressants, intentional self-harm
- T43.012A Poisoning by tricyclic antidepressants, intentional self-harm, initial encounter
- T43.012D Poisoning by tricyclic antidepressants, intentional self-harm, subsequent encounter
- T43.012S Poisoning by tricyclic antidepressants, intentional self-harm, sequela
- T43.013 Poisoning by tricyclic antidepressants, assault
- T43.013A Poisoning by tricyclic antidepressants, assault, initial encounter
- T43.013D Poisoning by tricyclic antidepressants, assault, subsequent encounter
- T43.013S Poisoning by tricyclic antidepressants, assault, sequela
- T43.014 Poisoning by tricyclic antidepressants, undetermined
- T43.014A Poisoning by tricyclic antidepressants, undetermined, initial encounter
- T43.014D Poisoning by tricyclic antidepressants, undetermined, subsequent encounter
- T43.014S Poisoning by tricyclic antidepressants, undetermined, sequela
- T43.015 Adverse effect of tricyclic antidepressants