T57.91XA
✓ Billable
Toxic effect of unspecified inorganic substance, accidental (unintentional), initial encounter
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
T57.91XA
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Injury, Poisoning and Certain Other Consequences of External Causes
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code T57.91XA?
ICD-10-CM code T57.91XA represents Toxic effect of unspecified inorganic substance, accidental (unintentional), initial encounter. It is a billable diagnosis code in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.
Is T57.91XA billable?
Yes. T57.91XA is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is T57.91XA in?
T57.91XA belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the T57 category
T57
Toxic effect of other inorganic substances
Non-billable
T57.0
Toxic effect of arsenic and its compounds
Non-billable
T57.1
Toxic effect of phosphorus and its compounds
Non-billable
T57.2
Toxic effect of manganese and its compounds
Non-billable
T57.3
Toxic effect of hydrogen cyanide
Non-billable
T57.8
Toxic effect of other specified inorganic substances
Non-billable
T57.9
Toxic effect of unspecified inorganic substance
Non-billable
T57.0X
Toxic effect of arsenic and its compounds
Non-billable
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