T65.841 (Toxic effect of xylazine, accidental (unintentional)) compared with T65.842 (Toxic effect of xylazine, intentional self-harm), from the official CMS tabular data. T65.841 and T65.842 code the same substance (Xylazine) with a different intent.
Same substance, different circumstance of exposure.
Same substance — intentional self-harm (Xylazine)
Accidental poisoning, intentional self-harm, assault, undetermined intent, adverse effect and underdosing are mutually exclusive columns — exactly one applies to a given encounter.
Source: CMS Table of Drugs and Chemicals
Same substance, different intent. T65.841 and T65.842 code the same substance (Xylazine) with a different circumstance of exposure.
From the CMS Table of Drugs and Chemicals: accidental poisoning, intentional self-harm, assault, undetermined intent, adverse effect and underdosing are mutually exclusive columns — only one of them applies to a given encounter.
| T65.841Toxic effect of xylazine, accidental (unintentional) | T65.842Toxic effect of xylazine, intentional self-harm | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| 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 | Toxic effect of xylazine, accidental (unintentional) is a non-billable ICD-10-CM category code (T65.841). | Toxic effect of xylazine, intentional self-harm is a non-billable ICD-10-CM category code (T65.842). |
| 7th character | The appropriate 7th character is to be added to each code from category T65 | The appropriate 7th character is to be added to each code from category T65 |
| Includes | Toxic effect of xylazine NOS | — |
| Use additional code | code(s) for all associated manifestations, such as: cellulitis and acute lymphangitis (L03.-) cutaneous abscess, furuncle and carbuncle (L02.-) | code(s) for all associated manifestations, such as: cellulitis and acute lymphangitis (L03.-) cutaneous abscess, furuncle and carbuncle (L02.-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources