T53.2X3 vs T53.2X4
T53.2X3 (Toxic effect of trichloroethylene, assault) compared with T53.2X4 (Toxic effect of trichloroethylene, undetermined), from the official CMS tabular data. T53.2X3 and T53.2X4 code the same substance (Trichlorethane) with a different intent.
Can these codes be reported together?
Same substance, different intent. T53.2X3 and T53.2X4 code the same substance (Trichlorethane) 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.
Side by side
| T53.2X3Toxic effect of trichloroethylene, assault | T53.2X4Toxic effect of trichloroethylene, undetermined | |
|---|---|---|
| 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 trichloroethylene, assault is a non-billable ICD-10-CM category code (T53.2X3). | Toxic effect of trichloroethylene, undetermined is a non-billable ICD-10-CM category code (T53.2X4). |
| 7th character | The appropriate 7th character is to be added to each code from category T53 | The appropriate 7th character is to be added to each code from category T53 |
| Use additional code | code(s): for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) personal history of foreign body fully removed (Z87.821) | code(s): for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) personal history of foreign body fully removed (Z87.821) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources