MCMedicalCodingSoftware
T57

T57: Toxic effect of other inorganic substances

Non-billable headerICD-10-CM

T57 is a non-billable header ICD-10-CM code for toxic effect of other inorganic substances. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category T57

A
initial encounter
D
subsequent encounter
S
sequela

Other codes that can never be billed with T57

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • T56Toxic effect of metals
  • T61Toxic effect of noxious substances eaten as seafood
  • T62Toxic effect of other noxious substances eaten as food
  • T65.0Toxic effect of cyanides

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T57

6 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.