T56 Toxic effect of metals
ICD-10-CM category T56 sits in Chapter 20 (External causes of morbidity, V00-Y99). It contains 144 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
T56.0 Toxic effects of lead and its compoundsT56.0X Toxic effects of lead and its compoundsT56.0X1 Toxic effect of lead and its compounds, accidentalT56.0X2 Toxic effect of lead and its compounds, self-harmT56.0X3 Toxic effect of lead and its compounds, assaultT56.0X4 Toxic effect of lead and its compounds, undeterminedT56.1 Toxic effects of mercury and its compoundsT56.1X Toxic effects of mercury and its compoundsT56.1X1 Toxic effect of mercury and its compounds, accidentalT56.1X2 Toxic effect of mercury and its compounds, self-harmT56.1X3 Toxic effect of mercury and its compounds, assaultT56.1X4 Toxic effect of mercury and its compounds, undeterminedT56.2 Toxic effects of chromium and its compoundsT56.2X Toxic effects of chromium and its compoundsT56.2X1 Toxic effect of chromium and its compounds, accidentalT56.2X2 Toxic effect of chromium and its compounds, self-harmT56.2X3 Toxic effect of chromium and its compounds, assaultT56.2X4 Toxic effect of chromium and its compounds, undeterminedT56.3 Toxic effects of cadmium and its compoundsT56.3X Toxic effects of cadmium and its compoundsT56.3X1 Toxic effect of cadmium and its compounds, accidentalT56.3X2 Toxic effect of cadmium and its compounds, self-harmT56.3X3 Toxic effect of cadmium and its compounds, assaultT56.3X4 Toxic effect of cadmium and its compounds, undeterminedT56.4 Toxic effects of copper and its compoundsT56.4X Toxic effects of copper and its compoundsT56.4X1 Toxic effect of copper and its compounds, accidentalT56.4X2 Toxic effect of copper and its compounds, self-harmT56.4X3 Toxic effect of copper and its compounds, assaultT56.4X4 Toxic effect of copper and its compounds, undeterminedT56.5 Toxic effects of zinc and its compoundsT56.5X Toxic effects of zinc and its compoundsT56.5X1 Toxic effect of zinc and its compounds, accidentalT56.5X2 Toxic effect of zinc and its compounds, self-harmT56.5X3 Toxic effect of zinc and its compounds, assaultT56.5X4 Toxic effect of zinc and its compounds, undeterminedT56.6 Toxic effects of tin and its compoundsT56.6X Toxic effects of tin and its compoundsT56.6X1 Toxic effect of tin and its compounds, accidentalT56.6X2 Toxic effect of tin and its compounds, intentional self-harm
Billable codes in T56
| Code | Description |
|---|---|
T56.0X1A | Toxic effect of lead and its compounds, accidental (unintentional), initial encounter |
T56.0X1D | Toxic effect of lead and its compounds, accidental (unintentional), subsequent encounter |
T56.0X1S | Toxic effect of lead and its compounds, accidental (unintentional), sequela |
T56.0X2A | Toxic effect of lead and its compounds, intentional self-harm, initial encounter |
T56.0X2D | Toxic effect of lead and its compounds, intentional self-harm, subsequent encounter |
T56.0X2S | Toxic effect of lead and its compounds, intentional self-harm, sequela |
T56.0X3A | Toxic effect of lead and its compounds, assault, initial encounter |
T56.0X3D | Toxic effect of lead and its compounds, assault, subsequent encounter |
T56.0X3S | Toxic effect of lead and its compounds, assault, sequela |
T56.0X4A | Toxic effect of lead and its compounds, undetermined, initial encounter |
T56.0X4D | Toxic effect of lead and its compounds, undetermined, subsequent encounter |
T56.0X4S | Toxic effect of lead and its compounds, undetermined, sequela |
T56.1X1A | Toxic effect of mercury and its compounds, accidental (unintentional), initial encounter |
T56.1X1D | Toxic effect of mercury and its compounds, accidental (unintentional), subsequent encounter |
T56.1X1S | Toxic effect of mercury and its compounds, accidental (unintentional), sequela |
T56.1X2A | Toxic effect of mercury and its compounds, intentional self-harm, initial encounter |
T56.1X2D | Toxic effect of mercury and its compounds, intentional self-harm, subsequent encounter |
T56.1X2S | Toxic effect of mercury and its compounds, intentional self-harm, sequela |
T56.1X3A | Toxic effect of mercury and its compounds, assault, initial encounter |
T56.1X3D | Toxic effect of mercury and its compounds, assault, subsequent encounter |
T56.1X3S | Toxic effect of mercury and its compounds, assault, sequela |
T56.1X4A | Toxic effect of mercury and its compounds, undetermined, initial encounter |
T56.1X4D | Toxic effect of mercury and its compounds, undetermined, subsequent encounter |
T56.1X4S | Toxic effect of mercury and its compounds, undetermined, sequela |
T56.2X1A | Toxic effect of chromium and its compounds, accidental (unintentional), initial encounter |
T56.2X1D | Toxic effect of chromium and its compounds, accidental (unintentional), subsequent encounter |
T56.2X1S | Toxic effect of chromium and its compounds, accidental (unintentional), sequela |
T56.2X2A | Toxic effect of chromium and its compounds, intentional self-harm, initial encounter |
T56.2X2D | Toxic effect of chromium and its compounds, intentional self-harm, subsequent encounter |
T56.2X2S | Toxic effect of chromium and its compounds, intentional self-harm, sequela |
T56.2X3A | Toxic effect of chromium and its compounds, assault, initial encounter |
T56.2X3D | Toxic effect of chromium and its compounds, assault, subsequent encounter |
T56.2X3S | Toxic effect of chromium and its compounds, assault, sequela |
T56.2X4A | Toxic effect of chromium and its compounds, undetermined, initial encounter |
T56.2X4D | Toxic effect of chromium and its compounds, undetermined, subsequent encounter |
T56.2X4S | Toxic effect of chromium and its compounds, undetermined, sequela |
T56.3X1A | Toxic effect of cadmium and its compounds, accidental (unintentional), initial encounter |
T56.3X1D | Toxic effect of cadmium and its compounds, accidental (unintentional), subsequent encounter |
T56.3X1S | Toxic effect of cadmium and its compounds, accidental (unintentional), sequela |
T56.3X2A | Toxic effect of cadmium and its compounds, intentional self-harm, initial encounter |
T56.3X2D | Toxic effect of cadmium and its compounds, intentional self-harm, subsequent encounter |
T56.3X2S | Toxic effect of cadmium and its compounds, intentional self-harm, sequela |
T56.3X3A | Toxic effect of cadmium and its compounds, assault, initial encounter |
T56.3X3D | Toxic effect of cadmium and its compounds, assault, subsequent encounter |
T56.3X3S | Toxic effect of cadmium and its compounds, assault, sequela |
T56.3X4A | Toxic effect of cadmium and its compounds, undetermined, initial encounter |
T56.3X4D | Toxic effect of cadmium and its compounds, undetermined, subsequent encounter |
T56.3X4S | Toxic effect of cadmium and its compounds, undetermined, sequela |
T56.4X1A | Toxic effect of copper and its compounds, accidental (unintentional), initial encounter |
T56.4X1D | Toxic effect of copper and its compounds, accidental (unintentional), subsequent encounter |
T56.4X1S | Toxic effect of copper and its compounds, accidental (unintentional), sequela |
T56.4X2A | Toxic effect of copper and its compounds, intentional self-harm, initial encounter |
T56.4X2D | Toxic effect of copper and its compounds, intentional self-harm, subsequent encounter |
T56.4X2S | Toxic effect of copper and its compounds, intentional self-harm, sequela |
T56.4X3A | Toxic effect of copper and its compounds, assault, initial encounter |
T56.4X3D | Toxic effect of copper and its compounds, assault, subsequent encounter |
T56.4X3S | Toxic effect of copper and its compounds, assault, sequela |
T56.4X4A | Toxic effect of copper and its compounds, undetermined, initial encounter |
T56.4X4D | Toxic effect of copper and its compounds, undetermined, subsequent encounter |
T56.4X4S | Toxic effect of copper and its compounds, undetermined, sequela |
T56.5X1A | Toxic effect of zinc and its compounds, accidental (unintentional), initial encounter |
T56.5X1D | Toxic effect of zinc and its compounds, accidental (unintentional), subsequent encounter |
T56.5X1S | Toxic effect of zinc and its compounds, accidental (unintentional), sequela |
T56.5X2A | Toxic effect of zinc and its compounds, intentional self-harm, initial encounter |
T56.5X2D | Toxic effect of zinc and its compounds, intentional self-harm, subsequent encounter |
T56.5X2S | Toxic effect of zinc and its compounds, intentional self-harm, sequela |
T56.5X3A | Toxic effect of zinc and its compounds, assault, initial encounter |
T56.5X3D | Toxic effect of zinc and its compounds, assault, subsequent encounter |
T56.5X3S | Toxic effect of zinc and its compounds, assault, sequela |
T56.5X4A | Toxic effect of zinc and its compounds, undetermined, initial encounter |
T56.5X4D | Toxic effect of zinc and its compounds, undetermined, subsequent encounter |
T56.5X4S | Toxic effect of zinc and its compounds, undetermined, sequela |
T56.6X1A | Toxic effect of tin and its compounds, accidental (unintentional), initial encounter |
T56.6X1D | Toxic effect of tin and its compounds, accidental (unintentional), subsequent encounter |
T56.6X1S | Toxic effect of tin and its compounds, accidental (unintentional), sequela |
T56.6X2A | Toxic effect of tin and its compounds, intentional self-harm, initial encounter |
T56.6X2D | Toxic effect of tin and its compounds, intentional self-harm, subsequent encounter |
T56.6X2S | Toxic effect of tin and its compounds, intentional self-harm, sequela |
T56.6X3A | Toxic effect of tin and its compounds, assault, initial encounter |
T56.6X3D | Toxic effect of tin and its compounds, assault, subsequent encounter |
T56.6X3S | Toxic effect of tin and its compounds, assault, sequela |
T56.6X4A | Toxic effect of tin and its compounds, undetermined, initial encounter |
T56.6X4D | Toxic effect of tin and its compounds, undetermined, subsequent encounter |
T56.6X4S | Toxic effect of tin and its compounds, undetermined, sequela |
T56.7X1A | Toxic effect of beryllium and its compounds, accidental (unintentional), initial encounter |
T56.7X1D | Toxic effect of beryllium and its compounds, accidental (unintentional), subsequent encounter |
T56.7X1S | Toxic effect of beryllium and its compounds, accidental (unintentional), sequela |
T56.7X2A | Toxic effect of beryllium and its compounds, intentional self-harm, initial encounter |
T56.7X2D | Toxic effect of beryllium and its compounds, intentional self-harm, subsequent encounter |
T56.7X2S | Toxic effect of beryllium and its compounds, intentional self-harm, sequela |
T56.7X3A | Toxic effect of beryllium and its compounds, assault, initial encounter |
T56.7X3D | Toxic effect of beryllium and its compounds, assault, subsequent encounter |
T56.7X3S | Toxic effect of beryllium and its compounds, assault, sequela |
T56.7X4A | Toxic effect of beryllium and its compounds, undetermined, initial encounter |
T56.7X4D | Toxic effect of beryllium and its compounds, undetermined, subsequent encounter |
T56.7X4S | Toxic effect of beryllium and its compounds, undetermined, sequela |
T56.811A | Toxic effect of thallium, accidental (unintentional), initial encounter |
T56.811D | Toxic effect of thallium, accidental (unintentional), subsequent encounter |
T56.811S | Toxic effect of thallium, accidental (unintentional), sequela |
T56.812A | Toxic effect of thallium, intentional self-harm, initial encounter |
T56.812D | Toxic effect of thallium, intentional self-harm, subsequent encounter |
T56.812S | Toxic effect of thallium, intentional self-harm, sequela |
T56.813A | Toxic effect of thallium, assault, initial encounter |
T56.813D | Toxic effect of thallium, assault, subsequent encounter |
T56.813S | Toxic effect of thallium, assault, sequela |
T56.814A | Toxic effect of thallium, undetermined, initial encounter |
T56.814D | Toxic effect of thallium, undetermined, subsequent encounter |
T56.814S | Toxic effect of thallium, undetermined, sequela |
T56.821A | Toxic effect of gadolinium, accidental (unintentional), initial encounter |
T56.821D | Toxic effect of gadolinium, accidental (unintentional), subsequent encounter |
T56.821S | Toxic effect of gadolinium, accidental (unintentional), sequela |
T56.822A | Toxic effect of gadolinium, intentional self-harm, initial encounter |
T56.822D | Toxic effect of gadolinium, intentional self-harm, subsequent encounter |
T56.822S | Toxic effect of gadolinium, intentional self-harm, sequela |
T56.823A | Toxic effect of gadolinium, assault, initial encounter |
T56.823D | Toxic effect of gadolinium, assault, subsequent encounter |
T56.823S | Toxic effect of gadolinium, assault, sequela |
T56.824A | Toxic effect of gadolinium, undetermined, initial encounter |
T56.824D | Toxic effect of gadolinium, undetermined, subsequent encounter |
T56.824S | Toxic effect of gadolinium, undetermined, sequela |
T56.891A | Toxic effect of other metals, accidental (unintentional), initial encounter |
T56.891D | Toxic effect of other metals, accidental (unintentional), subsequent encounter |
T56.891S | Toxic effect of other metals, accidental (unintentional), sequela |
T56.892A | Toxic effect of other metals, intentional self-harm, initial encounter |
T56.892D | Toxic effect of other metals, intentional self-harm, subsequent encounter |
T56.892S | Toxic effect of other metals, intentional self-harm, sequela |
T56.893A | Toxic effect of other metals, assault, initial encounter |
T56.893D | Toxic effect of other metals, assault, subsequent encounter |
T56.893S | Toxic effect of other metals, assault, sequela |
T56.894A | Toxic effect of other metals, undetermined, initial encounter |
T56.894D | Toxic effect of other metals, undetermined, subsequent encounter |
T56.894S | Toxic effect of other metals, undetermined, sequela |
T56.91XA | Toxic effect of unspecified metal, accidental (unintentional), initial encounter |
T56.91XD | Toxic effect of unspecified metal, accidental (unintentional), subsequent encounter |
T56.91XS | Toxic effect of unspecified metal, accidental (unintentional), sequela |
T56.92XA | Toxic effect of unspecified metal, intentional self-harm, initial encounter |
T56.92XD | Toxic effect of unspecified metal, intentional self-harm, subsequent encounter |
T56.92XS | Toxic effect of unspecified metal, intentional self-harm, sequela |
T56.93XA | Toxic effect of unspecified metal, assault, initial encounter |
T56.93XD | Toxic effect of unspecified metal, assault, subsequent encounter |
T56.93XS | Toxic effect of unspecified metal, assault, sequela |
T56.94XA | Toxic effect of unspecified metal, undetermined, initial encounter |
T56.94XD | Toxic effect of unspecified metal, undetermined, subsequent encounter |
T56.94XS | Toxic effect of unspecified metal, undetermined, sequela |
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