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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

CodeDescription
T56.0X1AToxic effect of lead and its compounds, accidental (unintentional), initial encounter
T56.0X1DToxic effect of lead and its compounds, accidental (unintentional), subsequent encounter
T56.0X1SToxic effect of lead and its compounds, accidental (unintentional), sequela
T56.0X2AToxic effect of lead and its compounds, intentional self-harm, initial encounter
T56.0X2DToxic effect of lead and its compounds, intentional self-harm, subsequent encounter
T56.0X2SToxic effect of lead and its compounds, intentional self-harm, sequela
T56.0X3AToxic effect of lead and its compounds, assault, initial encounter
T56.0X3DToxic effect of lead and its compounds, assault, subsequent encounter
T56.0X3SToxic effect of lead and its compounds, assault, sequela
T56.0X4AToxic effect of lead and its compounds, undetermined, initial encounter
T56.0X4DToxic effect of lead and its compounds, undetermined, subsequent encounter
T56.0X4SToxic effect of lead and its compounds, undetermined, sequela
T56.1X1AToxic effect of mercury and its compounds, accidental (unintentional), initial encounter
T56.1X1DToxic effect of mercury and its compounds, accidental (unintentional), subsequent encounter
T56.1X1SToxic effect of mercury and its compounds, accidental (unintentional), sequela
T56.1X2AToxic effect of mercury and its compounds, intentional self-harm, initial encounter
T56.1X2DToxic effect of mercury and its compounds, intentional self-harm, subsequent encounter
T56.1X2SToxic effect of mercury and its compounds, intentional self-harm, sequela
T56.1X3AToxic effect of mercury and its compounds, assault, initial encounter
T56.1X3DToxic effect of mercury and its compounds, assault, subsequent encounter
T56.1X3SToxic effect of mercury and its compounds, assault, sequela
T56.1X4AToxic effect of mercury and its compounds, undetermined, initial encounter
T56.1X4DToxic effect of mercury and its compounds, undetermined, subsequent encounter
T56.1X4SToxic effect of mercury and its compounds, undetermined, sequela
T56.2X1AToxic effect of chromium and its compounds, accidental (unintentional), initial encounter
T56.2X1DToxic effect of chromium and its compounds, accidental (unintentional), subsequent encounter
T56.2X1SToxic effect of chromium and its compounds, accidental (unintentional), sequela
T56.2X2AToxic effect of chromium and its compounds, intentional self-harm, initial encounter
T56.2X2DToxic effect of chromium and its compounds, intentional self-harm, subsequent encounter
T56.2X2SToxic effect of chromium and its compounds, intentional self-harm, sequela
T56.2X3AToxic effect of chromium and its compounds, assault, initial encounter
T56.2X3DToxic effect of chromium and its compounds, assault, subsequent encounter
T56.2X3SToxic effect of chromium and its compounds, assault, sequela
T56.2X4AToxic effect of chromium and its compounds, undetermined, initial encounter
T56.2X4DToxic effect of chromium and its compounds, undetermined, subsequent encounter
T56.2X4SToxic effect of chromium and its compounds, undetermined, sequela
T56.3X1AToxic effect of cadmium and its compounds, accidental (unintentional), initial encounter
T56.3X1DToxic effect of cadmium and its compounds, accidental (unintentional), subsequent encounter
T56.3X1SToxic effect of cadmium and its compounds, accidental (unintentional), sequela
T56.3X2AToxic effect of cadmium and its compounds, intentional self-harm, initial encounter
T56.3X2DToxic effect of cadmium and its compounds, intentional self-harm, subsequent encounter
T56.3X2SToxic effect of cadmium and its compounds, intentional self-harm, sequela
T56.3X3AToxic effect of cadmium and its compounds, assault, initial encounter
T56.3X3DToxic effect of cadmium and its compounds, assault, subsequent encounter
T56.3X3SToxic effect of cadmium and its compounds, assault, sequela
T56.3X4AToxic effect of cadmium and its compounds, undetermined, initial encounter
T56.3X4DToxic effect of cadmium and its compounds, undetermined, subsequent encounter
T56.3X4SToxic effect of cadmium and its compounds, undetermined, sequela
T56.4X1AToxic effect of copper and its compounds, accidental (unintentional), initial encounter
T56.4X1DToxic effect of copper and its compounds, accidental (unintentional), subsequent encounter
T56.4X1SToxic effect of copper and its compounds, accidental (unintentional), sequela
T56.4X2AToxic effect of copper and its compounds, intentional self-harm, initial encounter
T56.4X2DToxic effect of copper and its compounds, intentional self-harm, subsequent encounter
T56.4X2SToxic effect of copper and its compounds, intentional self-harm, sequela
T56.4X3AToxic effect of copper and its compounds, assault, initial encounter
T56.4X3DToxic effect of copper and its compounds, assault, subsequent encounter
T56.4X3SToxic effect of copper and its compounds, assault, sequela
T56.4X4AToxic effect of copper and its compounds, undetermined, initial encounter
T56.4X4DToxic effect of copper and its compounds, undetermined, subsequent encounter
T56.4X4SToxic effect of copper and its compounds, undetermined, sequela
T56.5X1AToxic effect of zinc and its compounds, accidental (unintentional), initial encounter
T56.5X1DToxic effect of zinc and its compounds, accidental (unintentional), subsequent encounter
T56.5X1SToxic effect of zinc and its compounds, accidental (unintentional), sequela
T56.5X2AToxic effect of zinc and its compounds, intentional self-harm, initial encounter
T56.5X2DToxic effect of zinc and its compounds, intentional self-harm, subsequent encounter
T56.5X2SToxic effect of zinc and its compounds, intentional self-harm, sequela
T56.5X3AToxic effect of zinc and its compounds, assault, initial encounter
T56.5X3DToxic effect of zinc and its compounds, assault, subsequent encounter
T56.5X3SToxic effect of zinc and its compounds, assault, sequela
T56.5X4AToxic effect of zinc and its compounds, undetermined, initial encounter
T56.5X4DToxic effect of zinc and its compounds, undetermined, subsequent encounter
T56.5X4SToxic effect of zinc and its compounds, undetermined, sequela
T56.6X1AToxic effect of tin and its compounds, accidental (unintentional), initial encounter
T56.6X1DToxic effect of tin and its compounds, accidental (unintentional), subsequent encounter
T56.6X1SToxic effect of tin and its compounds, accidental (unintentional), sequela
T56.6X2AToxic effect of tin and its compounds, intentional self-harm, initial encounter
T56.6X2DToxic effect of tin and its compounds, intentional self-harm, subsequent encounter
T56.6X2SToxic effect of tin and its compounds, intentional self-harm, sequela
T56.6X3AToxic effect of tin and its compounds, assault, initial encounter
T56.6X3DToxic effect of tin and its compounds, assault, subsequent encounter
T56.6X3SToxic effect of tin and its compounds, assault, sequela
T56.6X4AToxic effect of tin and its compounds, undetermined, initial encounter
T56.6X4DToxic effect of tin and its compounds, undetermined, subsequent encounter
T56.6X4SToxic effect of tin and its compounds, undetermined, sequela
T56.7X1AToxic effect of beryllium and its compounds, accidental (unintentional), initial encounter
T56.7X1DToxic effect of beryllium and its compounds, accidental (unintentional), subsequent encounter
T56.7X1SToxic effect of beryllium and its compounds, accidental (unintentional), sequela
T56.7X2AToxic effect of beryllium and its compounds, intentional self-harm, initial encounter
T56.7X2DToxic effect of beryllium and its compounds, intentional self-harm, subsequent encounter
T56.7X2SToxic effect of beryllium and its compounds, intentional self-harm, sequela
T56.7X3AToxic effect of beryllium and its compounds, assault, initial encounter
T56.7X3DToxic effect of beryllium and its compounds, assault, subsequent encounter
T56.7X3SToxic effect of beryllium and its compounds, assault, sequela
T56.7X4AToxic effect of beryllium and its compounds, undetermined, initial encounter
T56.7X4DToxic effect of beryllium and its compounds, undetermined, subsequent encounter
T56.7X4SToxic effect of beryllium and its compounds, undetermined, sequela
T56.811AToxic effect of thallium, accidental (unintentional), initial encounter
T56.811DToxic effect of thallium, accidental (unintentional), subsequent encounter
T56.811SToxic effect of thallium, accidental (unintentional), sequela
T56.812AToxic effect of thallium, intentional self-harm, initial encounter
T56.812DToxic effect of thallium, intentional self-harm, subsequent encounter
T56.812SToxic effect of thallium, intentional self-harm, sequela
T56.813AToxic effect of thallium, assault, initial encounter
T56.813DToxic effect of thallium, assault, subsequent encounter
T56.813SToxic effect of thallium, assault, sequela
T56.814AToxic effect of thallium, undetermined, initial encounter
T56.814DToxic effect of thallium, undetermined, subsequent encounter
T56.814SToxic effect of thallium, undetermined, sequela
T56.821AToxic effect of gadolinium, accidental (unintentional), initial encounter
T56.821DToxic effect of gadolinium, accidental (unintentional), subsequent encounter
T56.821SToxic effect of gadolinium, accidental (unintentional), sequela
T56.822AToxic effect of gadolinium, intentional self-harm, initial encounter
T56.822DToxic effect of gadolinium, intentional self-harm, subsequent encounter
T56.822SToxic effect of gadolinium, intentional self-harm, sequela
T56.823AToxic effect of gadolinium, assault, initial encounter
T56.823DToxic effect of gadolinium, assault, subsequent encounter
T56.823SToxic effect of gadolinium, assault, sequela
T56.824AToxic effect of gadolinium, undetermined, initial encounter
T56.824DToxic effect of gadolinium, undetermined, subsequent encounter
T56.824SToxic effect of gadolinium, undetermined, sequela
T56.891AToxic effect of other metals, accidental (unintentional), initial encounter
T56.891DToxic effect of other metals, accidental (unintentional), subsequent encounter
T56.891SToxic effect of other metals, accidental (unintentional), sequela
T56.892AToxic effect of other metals, intentional self-harm, initial encounter
T56.892DToxic effect of other metals, intentional self-harm, subsequent encounter
T56.892SToxic effect of other metals, intentional self-harm, sequela
T56.893AToxic effect of other metals, assault, initial encounter
T56.893DToxic effect of other metals, assault, subsequent encounter
T56.893SToxic effect of other metals, assault, sequela
T56.894AToxic effect of other metals, undetermined, initial encounter
T56.894DToxic effect of other metals, undetermined, subsequent encounter
T56.894SToxic effect of other metals, undetermined, sequela
T56.91XAToxic effect of unspecified metal, accidental (unintentional), initial encounter
T56.91XDToxic effect of unspecified metal, accidental (unintentional), subsequent encounter
T56.91XSToxic effect of unspecified metal, accidental (unintentional), sequela
T56.92XAToxic effect of unspecified metal, intentional self-harm, initial encounter
T56.92XDToxic effect of unspecified metal, intentional self-harm, subsequent encounter
T56.92XSToxic effect of unspecified metal, intentional self-harm, sequela
T56.93XAToxic effect of unspecified metal, assault, initial encounter
T56.93XDToxic effect of unspecified metal, assault, subsequent encounter
T56.93XSToxic effect of unspecified metal, assault, sequela
T56.94XAToxic effect of unspecified metal, undetermined, initial encounter
T56.94XDToxic effect of unspecified metal, undetermined, subsequent encounter
T56.94XSToxic effect of unspecified metal, undetermined, sequela

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