T65.221 (Toxic effect of tobacco cigarettes, accidental (unintentional)) compared with T65.223 (Toxic effect of tobacco cigarettes, assault), from the official CMS tabular data. T65.221 and T65.223 code the same substance (Cigarettes) with a different intent.
Same substance, different circumstance of exposure.
Same substance — assault (Cigarettes)
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. T65.221 and T65.223 code the same substance (Cigarettes) 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.
| T65.221Toxic effect of tobacco cigarettes, accidental (unintentional) | T65.223Toxic effect of tobacco cigarettes, assault | |
|---|---|---|
| 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 tobacco cigarettes, accidental (unintentional) is a non-billable ICD-10-CM category code (T65.221). | Toxic effect of tobacco cigarettes, assault is a non-billable ICD-10-CM category code (T65.223). |
| 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 tobacco cigarettes NOS | — |
| Use additional code | code for exposure to second hand tobacco smoke (Z57.31, Z77.22) code(s): for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) | code for exposure to second hand tobacco smoke (Z57.31, Z77.22) code(s): for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources