ICD-10-CM Tabular Index · Chapter 19 · FY 2026 T57

Toxic effect of other inorganic substances (T57) ICD-10-CM

The T57 code range covers toxic effect of other inorganic substances with 108 ICD-10-CM diagnosis codes. 72 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
108
Diagnosis Codes
72
Billable Codes
T57
Code Range
T51–T65
Parent Section

7th Character Note

Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

7th Character

Indicates that a seventh character is to be assigned to codes in a subcategory.

ICD-10-CM

Codes in the T57 Range 108 codes · 72 billable

108 of 108 shown
  • T57 Toxic effect of other inorganic substancesNon-billable
  • T57.0 Toxic effect of arsenic and its compoundsNon-billable
  • T57.0X Toxic effect of arsenic and its compoundsNon-billable
  • T57.0X1 Toxic effect of arsenic and its compounds, accidental (unintentional)Non-billable
  • T57.0X1A Toxic effect of arsenic and its compounds, accidental (unintentional), initial encounter
  • T57.0X1D Toxic effect of arsenic and its compounds, accidental (unintentional), subsequent encounter
  • T57.0X1S Toxic effect of arsenic and its compounds, accidental (unintentional), sequela
  • T57.0X2 Toxic effect of arsenic and its compounds, intentional self-harmNon-billable
  • T57.0X2A Toxic effect of arsenic and its compounds, intentional self-harm, initial encounter
  • T57.0X2D Toxic effect of arsenic and its compounds, intentional self-harm, subsequent encounter
  • T57.0X2S Toxic effect of arsenic and its compounds, intentional self-harm, sequela
  • T57.0X3 Toxic effect of arsenic and its compounds, assaultNon-billable
  • T57.0X3A Toxic effect of arsenic and its compounds, assault, initial encounter
  • T57.0X3D Toxic effect of arsenic and its compounds, assault, subsequent encounter
  • T57.0X3S Toxic effect of arsenic and its compounds, assault, sequela
  • T57.0X4 Toxic effect of arsenic and its compounds, undeterminedNon-billable
  • T57.0X4A Toxic effect of arsenic and its compounds, undetermined, initial encounter
  • T57.0X4D Toxic effect of arsenic and its compounds, undetermined, subsequent encounter
  • T57.0X4S Toxic effect of arsenic and its compounds, undetermined, sequela
  • T57.1 Toxic effect of phosphorus and its compoundsNon-billable
  • T57.1X Toxic effect of phosphorus and its compoundsNon-billable
  • T57.1X1 Toxic effect of phosphorus and its compounds, accidental (unintentional)Non-billable
  • T57.1X1A Toxic effect of phosphorus and its compounds, accidental (unintentional), initial encounter
  • T57.1X1D Toxic effect of phosphorus and its compounds, accidental (unintentional), subsequent encounter
  • T57.1X1S Toxic effect of phosphorus and its compounds, accidental (unintentional), sequela
  • T57.1X2 Toxic effect of phosphorus and its compounds, intentional self-harmNon-billable
  • T57.1X2A Toxic effect of phosphorus and its compounds, intentional self-harm, initial encounter
  • T57.1X2D Toxic effect of phosphorus and its compounds, intentional self-harm, subsequent encounter
  • T57.1X2S Toxic effect of phosphorus and its compounds, intentional self-harm, sequela
  • T57.1X3 Toxic effect of phosphorus and its compounds, assaultNon-billable
  • T57.1X3A Toxic effect of phosphorus and its compounds, assault, initial encounter
  • T57.1X3D Toxic effect of phosphorus and its compounds, assault, subsequent encounter
  • T57.1X3S Toxic effect of phosphorus and its compounds, assault, sequela
  • T57.1X4 Toxic effect of phosphorus and its compounds, undeterminedNon-billable
  • T57.1X4A Toxic effect of phosphorus and its compounds, undetermined, initial encounter
  • T57.1X4D Toxic effect of phosphorus and its compounds, undetermined, subsequent encounter
  • T57.1X4S Toxic effect of phosphorus and its compounds, undetermined, sequela
  • T57.2 Toxic effect of manganese and its compoundsNon-billable
  • T57.2X Toxic effect of manganese and its compoundsNon-billable
  • T57.2X1 Toxic effect of manganese and its compounds, accidental (unintentional)Non-billable
  • T57.2X1A Toxic effect of manganese and its compounds, accidental (unintentional), initial encounter
  • T57.2X1D Toxic effect of manganese and its compounds, accidental (unintentional), subsequent encounter
  • T57.2X1S Toxic effect of manganese and its compounds, accidental (unintentional), sequela
  • T57.2X2 Toxic effect of manganese and its compounds, intentional self-harmNon-billable
  • T57.2X2A Toxic effect of manganese and its compounds, intentional self-harm, initial encounter
  • T57.2X2D Toxic effect of manganese and its compounds, intentional self-harm, subsequent encounter
  • T57.2X2S Toxic effect of manganese and its compounds, intentional self-harm, sequela
  • T57.2X3 Toxic effect of manganese and its compounds, assaultNon-billable
  • T57.2X3A Toxic effect of manganese and its compounds, assault, initial encounter
  • T57.2X3D Toxic effect of manganese and its compounds, assault, subsequent encounter
  • T57.2X3S Toxic effect of manganese and its compounds, assault, sequela
  • T57.2X4 Toxic effect of manganese and its compounds, undeterminedNon-billable
  • T57.2X4A Toxic effect of manganese and its compounds, undetermined, initial encounter
  • T57.2X4D Toxic effect of manganese and its compounds, undetermined, subsequent encounter
  • T57.2X4S Toxic effect of manganese and its compounds, undetermined, sequela
  • T57.3 Toxic effect of hydrogen cyanideNon-billable
  • T57.3X Toxic effect of hydrogen cyanideNon-billable
  • T57.3X1 Toxic effect of hydrogen cyanide, accidental (unintentional)Non-billable
  • T57.3X1A Toxic effect of hydrogen cyanide, accidental (unintentional), initial encounter
  • T57.3X1D Toxic effect of hydrogen cyanide, accidental (unintentional), subsequent encounter
  • T57.3X1S Toxic effect of hydrogen cyanide, accidental (unintentional), sequela
  • T57.3X2 Toxic effect of hydrogen cyanide, intentional self-harmNon-billable
  • T57.3X2A Toxic effect of hydrogen cyanide, intentional self-harm, initial encounter
  • T57.3X2D Toxic effect of hydrogen cyanide, intentional self-harm, subsequent encounter
  • T57.3X2S Toxic effect of hydrogen cyanide, intentional self-harm, sequela
  • T57.3X3 Toxic effect of hydrogen cyanide, assaultNon-billable
  • T57.3X3A Toxic effect of hydrogen cyanide, assault, initial encounter
  • T57.3X3D Toxic effect of hydrogen cyanide, assault, subsequent encounter
  • T57.3X3S Toxic effect of hydrogen cyanide, assault, sequela
  • T57.3X4 Toxic effect of hydrogen cyanide, undeterminedNon-billable
  • T57.3X4A Toxic effect of hydrogen cyanide, undetermined, initial encounter
  • T57.3X4D Toxic effect of hydrogen cyanide, undetermined, subsequent encounter
  • T57.3X4S Toxic effect of hydrogen cyanide, undetermined, sequela
  • T57.8 Toxic effect of other specified inorganic substancesNon-billable
  • T57.8X Toxic effect of other specified inorganic substancesNon-billable
  • T57.8X1 Toxic effect of other specified inorganic substances, accidental (unintentional)Non-billable
  • T57.8X1A Toxic effect of other specified inorganic substances, accidental (unintentional), initial encounter
  • T57.8X1D Toxic effect of other specified inorganic substances, accidental (unintentional), subsequent encounter
  • T57.8X1S Toxic effect of other specified inorganic substances, accidental (unintentional), sequela
  • T57.8X2 Toxic effect of other specified inorganic substances, intentional self-harmNon-billable
  • T57.8X2A Toxic effect of other specified inorganic substances, intentional self-harm, initial encounter
  • T57.8X2D Toxic effect of other specified inorganic substances, intentional self-harm, subsequent encounter
  • T57.8X2S Toxic effect of other specified inorganic substances, intentional self-harm, sequela
  • T57.8X3 Toxic effect of other specified inorganic substances, assaultNon-billable
  • T57.8X3A Toxic effect of other specified inorganic substances, assault, initial encounter
  • T57.8X3D Toxic effect of other specified inorganic substances, assault, subsequent encounter
  • T57.8X3S Toxic effect of other specified inorganic substances, assault, sequela
  • T57.8X4 Toxic effect of other specified inorganic substances, undeterminedNon-billable
  • T57.8X4A Toxic effect of other specified inorganic substances, undetermined, initial encounter
  • T57.8X4D Toxic effect of other specified inorganic substances, undetermined, subsequent encounter
  • T57.8X4S Toxic effect of other specified inorganic substances, undetermined, sequela
  • T57.9 Toxic effect of unspecified inorganic substanceNon-billable
  • T57.91 Toxic effect of unspecified inorganic substance, accidental (unintentional)Non-billable
  • T57.91XA Toxic effect of unspecified inorganic substance, accidental (unintentional), initial encounter
  • T57.91XD Toxic effect of unspecified inorganic substance, accidental (unintentional), subsequent encounter
  • T57.91XS Toxic effect of unspecified inorganic substance, accidental (unintentional), sequela
  • T57.92 Toxic effect of unspecified inorganic substance, intentional self-harmNon-billable
  • T57.92XA Toxic effect of unspecified inorganic substance, intentional self-harm, initial encounter
  • T57.92XD Toxic effect of unspecified inorganic substance, intentional self-harm, subsequent encounter
  • T57.92XS Toxic effect of unspecified inorganic substance, intentional self-harm, sequela
  • T57.93 Toxic effect of unspecified inorganic substance, assaultNon-billable
  • T57.93XA Toxic effect of unspecified inorganic substance, assault, initial encounter
  • T57.93XD Toxic effect of unspecified inorganic substance, assault, subsequent encounter
  • T57.93XS Toxic effect of unspecified inorganic substance, assault, sequela
  • T57.94 Toxic effect of unspecified inorganic substance, undeterminedNon-billable
  • T57.94XA Toxic effect of unspecified inorganic substance, undetermined, initial encounter
  • T57.94XD Toxic effect of unspecified inorganic substance, undetermined, subsequent encounter
  • T57.94XS Toxic effect of unspecified inorganic substance, undetermined, sequela

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the T57 range.

Asbestos

Asbestos. Fibrous incombustible mineral composed of magnesium and calcium silicates with or without other elements. It is relatively inert chemically and used in thermal insulation and fireproofing. Inhalation of dust causes asbestosis and later lung and gastrointestinal neoplasms.

Asbestos, Amosite

Asbestos, grunerite. A monoclinic amphibole form of asbestos having long fibers and a high iron content. It is used in insulation. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

Asbestos, Amphibole

A class of asbestos that includes silicates of magnesium, iron, calcium, and sodium. The fibers are generally brittle and cannot be spun, but are more resistant to chemicals and heat than ASBESTOS, SERPENTINE. (From Hawley's Condensed Chemical Dictionary, 11th ed)

Asbestos, Crocidolite

A lavender, acid-resistant asbestos.

Asbestos, Serpentine

A type of asbestos that occurs in nature as the dihydrate of magnesium silicate. It exists in two forms: antigorite, a plated variety, and chrysotile, a fibrous variety. The latter makes up 95% of all asbestos products. (From Merck Index, 11th ed, p.893)

Asbestosis

A form of pneumoconiosis caused by inhalation of asbestos fibers which elicit potent inflammatory responses in the parenchyma of the lung. The disease is characterized by interstitial fibrosis of the lung, varying from scattered sites to extensive scarring of the alveolar interstitium.

About the T57 Code Range

The T57 ICD-10 codes identify toxic effects caused by various inorganic substances, including arsenic, phosphorus, manganese, hydrogen cyanide, and other specified or unspecified inorganic chemicals. These codes detail whether the exposure was accidental, intentional self-harm, assault, or undetermined, and account for different stages of treatment such as initial, subsequent, or sequela encounters.

These ICD-10 codes are essential for documenting poisoning or toxic effects from inorganic substances. For example, T57.0X1 indicates accidental poisoning by arsenic or its compounds, also known as arsenic encephalopathy or arsenical tremor, helping coders link common names to official codes. Similarly, T57.1X1 covers accidental toxic effects of phosphorus compounds, including phosphorus burns and phosphine poisoning. Toxic manganese exposure falls under T57.2X1, associated with conditions like manganese-induced parkinsonism or manganese pneumonitis. T57.3X1 codes recognize accidental hydrogen cyanide poisoning, also related to cyanide compounds. Other codes such as T57.8X1 cover accidental toxic effects of other specified inorganic substances like asbestos or borate. Each code further stratifies the encounter type and intent, making these vital precise codes for clinical classification and reporting of inorganic substance toxicities.

Questions About This Page

How many billable codes are in the T57 range?

Of the 108 codes in this range, 72 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the T57 range classify?

The range classifies toxic effect of other inorganic substances. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.