ICD-10-CM 2027 diagnosis code

T54Toxic effect of corrosive substances

Not billable — use a more specific code

T54 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About T54

T54 is the ICD-10-CM diagnosis code for toxic effect of corrosive substances. It belongs to block T51-T65 (toxic effects of substances chiefly nonmedicinal as to source) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: T54.0 (homologues), T54.1 (compounds), T54.2 (substances), T54.3 (substances) and T54.9 (substance).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under T54

Notes that apply from higher levels

Instructions written at a parent level also apply to T54.

Broader instructions also apply from T51-T65 Toxic effects of substances chiefly nonmedicinal as to source and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Code history

2016
2017
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2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about T54

Is T54 billable?: No. T54 is a header code. Report one of its more specific subcodes instead.