T56.2X1 vs T56.2X4
T56.2X1 (Toxic effect of chromium and its compounds, accidental (unintentional)) compared with T56.2X4 (Toxic effect of chromium and its compounds, undetermined), from the official CMS tabular data. T56.2X1 and T56.2X4 code the same substance (Chromate) with a different intent.
Can these codes be reported together?
Same substance, different intent. T56.2X1 and T56.2X4 code the same substance (Chromate) 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
| T56.2X1Toxic effect of chromium and its compounds, accidental (unintentional) | T56.2X4Toxic effect of chromium and its compounds, 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 chromium and its compounds, accidental (unintentional) is a non-billable ICD-10-CM category code (T56.2X1). | Toxic effect of chromium and its compounds, undetermined is a non-billable ICD-10-CM category code (T56.2X4). |
| 7th character | The appropriate 7th character is to be added to each code from category T56 | The appropriate 7th character is to be added to each code from category T56 |
| Includes | toxic effects of fumes and vapors of metals toxic effects of metals from all sources, except medicinal substances Toxic effects of chromium and its compounds NOS | toxic effects of fumes and vapors of metals toxic effects of metals from all sources, except medicinal substances |
| Use additional code | code to identify any retained metal foreign body, if applicable (Z18.0-, T18.1-) code(s): for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) | code to identify any retained metal foreign body, if applicable (Z18.0-, T18.1-) 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