T65 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Toxic effect of other and unspecified substances.
Seventh character note
The appropriate 7th character is to be added to each code from category T65
Seventh character extensions
A: initial encounter
D: subsequent encounter
S: sequela
Codes
T65.0
Toxic effect of cyanides
T65.1
Toxic effect of strychnine and its salts
T65.2
Toxic effect of tobacco and nicotine
T65.3
Toxic effect of nitroderivatives and aminoderivatives of benzene and its homologues
T65.4
Toxic effect of carbon disulfide
T65.5
Toxic effect of nitroglycerin and other nitric acids and esters
T65.6
Toxic effect of paints and dyes, not elsewhere classified
T65.8
Toxic effect of other specified substances
T65.9
Toxic effect of unspecified substance
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code