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T65 Toxic effect of other and unspecified substances

ICD-10-CM category T65 sits in Chapter 20 (External causes of morbidity, V00-Y99). It contains 192 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Subcategories

T65.0 Toxic effect of cyanidesT65.0X Toxic effect of cyanidesT65.0X1 Toxic effect of cyanides, accidental (unintentional)T65.0X2 Toxic effect of cyanides, intentional self-harmT65.0X3 Toxic effect of cyanides, assaultT65.0X4 Toxic effect of cyanides, undeterminedT65.1 Toxic effect of strychnine and its saltsT65.1X Toxic effect of strychnine and its saltsT65.1X1 Toxic effect of strychnine and its salts, accidentalT65.1X2 Toxic effect of strychnine and its salts, self-harmT65.1X3 Toxic effect of strychnine and its salts, assaultT65.1X4 Toxic effect of strychnine and its salts, undeterminedT65.2 Toxic effect of tobacco and nicotineT65.21 Toxic effect of chewing tobaccoT65.211 Toxic effect of chewing tobacco, accidental (unintentional)T65.212 Toxic effect of chewing tobacco, intentional self-harmT65.213 Toxic effect of chewing tobacco, assaultT65.214 Toxic effect of chewing tobacco, undeterminedT65.22 Toxic effect of tobacco cigarettesT65.221 Toxic effect of tobacco cigarettes, accidentalT65.222 Toxic effect of tobacco cigarettes, intentional self-harmT65.223 Toxic effect of tobacco cigarettes, assaultT65.224 Toxic effect of tobacco cigarettes, undeterminedT65.29 Toxic effect of other tobacco and nicotineT65.291 Toxic effect of tobacco and nicotine, accidentalT65.292 Toxic effect of tobacco and nicotine, intentional self-harmT65.293 Toxic effect of other tobacco and nicotine, assaultT65.294 Toxic effect of other tobacco and nicotine, undeterminedT65.3 Toxic effect of nitrodrv/aminodrv of benzn/homologT65.3X Toxic effect of nitrodrv/aminodrv of benzn/homologT65.3X1 Toxic effect of nitrodrv/aminodrv of benzn/homolog, accT65.3X2 Toxic effect of nitrodrv/aminodrv of benzn/homolog, slf-hrmT65.3X3 Toxic effect of nitrodrv/aminodrv of benzn/homolog, assaultT65.3X4 Toxic effect of nitrodrv/aminodrv of benzn/homolog, undetT65.4 Toxic effect of carbon disulfideT65.4X Toxic effect of carbon disulfideT65.4X1 Toxic effect of carbon disulfide, accidental (unintentional)T65.4X2 Toxic effect of carbon disulfide, intentional self-harmT65.4X3 Toxic effect of carbon disulfide, assaultT65.4X4 Toxic effect of carbon disulfide, undetermined

Billable codes in T65

CodeDescription
T65.0X1AToxic effect of cyanides, accidental (unintentional), initial encounter
T65.0X1DToxic effect of cyanides, accidental (unintentional), subsequent encounter
T65.0X1SToxic effect of cyanides, accidental (unintentional), sequela
T65.0X2AToxic effect of cyanides, intentional self-harm, initial encounter
T65.0X2DToxic effect of cyanides, intentional self-harm, subsequent encounter
T65.0X2SToxic effect of cyanides, intentional self-harm, sequela
T65.0X3AToxic effect of cyanides, assault, initial encounter
T65.0X3DToxic effect of cyanides, assault, subsequent encounter
T65.0X3SToxic effect of cyanides, assault, sequela
T65.0X4AToxic effect of cyanides, undetermined, initial encounter
T65.0X4DToxic effect of cyanides, undetermined, subsequent encounter
T65.0X4SToxic effect of cyanides, undetermined, sequela
T65.1X1AToxic effect of strychnine and its salts, accidental (unintentional), initial encounter
T65.1X1DToxic effect of strychnine and its salts, accidental (unintentional), subsequent encounter
T65.1X1SToxic effect of strychnine and its salts, accidental (unintentional), sequela
T65.1X2AToxic effect of strychnine and its salts, intentional self-harm, initial encounter
T65.1X2DToxic effect of strychnine and its salts, intentional self-harm, subsequent encounter
T65.1X2SToxic effect of strychnine and its salts, intentional self-harm, sequela
T65.1X3AToxic effect of strychnine and its salts, assault, initial encounter
T65.1X3DToxic effect of strychnine and its salts, assault, subsequent encounter
T65.1X3SToxic effect of strychnine and its salts, assault, sequela
T65.1X4AToxic effect of strychnine and its salts, undetermined, initial encounter
T65.1X4DToxic effect of strychnine and its salts, undetermined, subsequent encounter
T65.1X4SToxic effect of strychnine and its salts, undetermined, sequela
T65.211AToxic effect of chewing tobacco, accidental (unintentional), initial encounter
T65.211DToxic effect of chewing tobacco, accidental (unintentional), subsequent encounter
T65.211SToxic effect of chewing tobacco, accidental (unintentional), sequela
T65.212AToxic effect of chewing tobacco, intentional self-harm, initial encounter
T65.212DToxic effect of chewing tobacco, intentional self-harm, subsequent encounter
T65.212SToxic effect of chewing tobacco, intentional self-harm, sequela
T65.213AToxic effect of chewing tobacco, assault, initial encounter
T65.213DToxic effect of chewing tobacco, assault, subsequent encounter
T65.213SToxic effect of chewing tobacco, assault, sequela
T65.214AToxic effect of chewing tobacco, undetermined, initial encounter
T65.214DToxic effect of chewing tobacco, undetermined, subsequent encounter
T65.214SToxic effect of chewing tobacco, undetermined, sequela
T65.221AToxic effect of tobacco cigarettes, accidental (unintentional), initial encounter
T65.221DToxic effect of tobacco cigarettes, accidental (unintentional), subsequent encounter
T65.221SToxic effect of tobacco cigarettes, accidental (unintentional), sequela
T65.222AToxic effect of tobacco cigarettes, intentional self-harm, initial encounter
T65.222DToxic effect of tobacco cigarettes, intentional self-harm, subsequent encounter
T65.222SToxic effect of tobacco cigarettes, intentional self-harm, sequela
T65.223AToxic effect of tobacco cigarettes, assault, initial encounter
T65.223DToxic effect of tobacco cigarettes, assault, subsequent encounter
T65.223SToxic effect of tobacco cigarettes, assault, sequela
T65.224AToxic effect of tobacco cigarettes, undetermined, initial encounter
T65.224DToxic effect of tobacco cigarettes, undetermined, subsequent encounter
T65.224SToxic effect of tobacco cigarettes, undetermined, sequela
T65.291AToxic effect of other tobacco and nicotine, accidental (unintentional), initial encounter
T65.291DToxic effect of other tobacco and nicotine, accidental (unintentional), subsequent encounter
T65.291SToxic effect of other tobacco and nicotine, accidental (unintentional), sequela
T65.292AToxic effect of other tobacco and nicotine, intentional self-harm, initial encounter
T65.292DToxic effect of other tobacco and nicotine, intentional self-harm, subsequent encounter
T65.292SToxic effect of other tobacco and nicotine, intentional self-harm, sequela
T65.293AToxic effect of other tobacco and nicotine, assault, initial encounter
T65.293DToxic effect of other tobacco and nicotine, assault, subsequent encounter
T65.293SToxic effect of other tobacco and nicotine, assault, sequela
T65.294AToxic effect of other tobacco and nicotine, undetermined, initial encounter
T65.294DToxic effect of other tobacco and nicotine, undetermined, subsequent encounter
T65.294SToxic effect of other tobacco and nicotine, undetermined, sequela
T65.3X1AToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, accidental (unintentional), initial encounter
T65.3X1DToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, accidental (unintentional), subsequent encounter
T65.3X1SToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, accidental (unintentional), sequela
T65.3X2AToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, intentional self-harm, initial encounter
T65.3X2DToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, intentional self-harm, subsequent encounter
T65.3X2SToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, intentional self-harm, sequela
T65.3X3AToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, assault, initial encounter
T65.3X3DToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, assault, subsequent encounter
T65.3X3SToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, assault, sequela
T65.3X4AToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, undetermined, initial encounter
T65.3X4DToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, undetermined, subsequent encounter
T65.3X4SToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, undetermined, sequela
T65.4X1AToxic effect of carbon disulfide, accidental (unintentional), initial encounter
T65.4X1DToxic effect of carbon disulfide, accidental (unintentional), subsequent encounter
T65.4X1SToxic effect of carbon disulfide, accidental (unintentional), sequela
T65.4X2AToxic effect of carbon disulfide, intentional self-harm, initial encounter
T65.4X2DToxic effect of carbon disulfide, intentional self-harm, subsequent encounter
T65.4X2SToxic effect of carbon disulfide, intentional self-harm, sequela
T65.4X3AToxic effect of carbon disulfide, assault, initial encounter
T65.4X3DToxic effect of carbon disulfide, assault, subsequent encounter
T65.4X3SToxic effect of carbon disulfide, assault, sequela
T65.4X4AToxic effect of carbon disulfide, undetermined, initial encounter
T65.4X4DToxic effect of carbon disulfide, undetermined, subsequent encounter
T65.4X4SToxic effect of carbon disulfide, undetermined, sequela
T65.5X1AToxic effect of nitroglycerin and other nitric acids and esters, accidental (unintentional), initial encounter
T65.5X1DToxic effect of nitroglycerin and other nitric acids and esters, accidental (unintentional), subsequent encounter
T65.5X1SToxic effect of nitroglycerin and other nitric acids and esters, accidental (unintentional), sequela
T65.5X2AToxic effect of nitroglycerin and other nitric acids and esters, intentional self-harm, initial encounter
T65.5X2DToxic effect of nitroglycerin and other nitric acids and esters, intentional self-harm, subsequent encounter
T65.5X2SToxic effect of nitroglycerin and other nitric acids and esters, intentional self-harm, sequela
T65.5X3AToxic effect of nitroglycerin and other nitric acids and esters, assault, initial encounter
T65.5X3DToxic effect of nitroglycerin and other nitric acids and esters, assault, subsequent encounter
T65.5X3SToxic effect of nitroglycerin and other nitric acids and esters, assault, sequela
T65.5X4AToxic effect of nitroglycerin and other nitric acids and esters, undetermined, initial encounter
T65.5X4DToxic effect of nitroglycerin and other nitric acids and esters, undetermined, subsequent encounter
T65.5X4SToxic effect of nitroglycerin and other nitric acids and esters, undetermined, sequela
T65.6X1AToxic effect of paints and dyes, not elsewhere classified, accidental (unintentional), initial encounter
T65.6X1DToxic effect of paints and dyes, not elsewhere classified, accidental (unintentional), subsequent encounter
T65.6X1SToxic effect of paints and dyes, not elsewhere classified, accidental (unintentional), sequela
T65.6X2AToxic effect of paints and dyes, not elsewhere classified, intentional self-harm, initial encounter
T65.6X2DToxic effect of paints and dyes, not elsewhere classified, intentional self-harm, subsequent encounter
T65.6X2SToxic effect of paints and dyes, not elsewhere classified, intentional self-harm, sequela
T65.6X3AToxic effect of paints and dyes, not elsewhere classified, assault, initial encounter
T65.6X3DToxic effect of paints and dyes, not elsewhere classified, assault, subsequent encounter
T65.6X3SToxic effect of paints and dyes, not elsewhere classified, assault, sequela
T65.6X4AToxic effect of paints and dyes, not elsewhere classified, undetermined, initial encounter
T65.6X4DToxic effect of paints and dyes, not elsewhere classified, undetermined, subsequent encounter
T65.6X4SToxic effect of paints and dyes, not elsewhere classified, undetermined, sequela
T65.811AToxic effect of latex, accidental (unintentional), initial encounter
T65.811DToxic effect of latex, accidental (unintentional), subsequent encounter
T65.811SToxic effect of latex, accidental (unintentional), sequela
T65.812AToxic effect of latex, intentional self-harm, initial encounter
T65.812DToxic effect of latex, intentional self-harm, subsequent encounter
T65.812SToxic effect of latex, intentional self-harm, sequela
T65.813AToxic effect of latex, assault, initial encounter
T65.813DToxic effect of latex, assault, subsequent encounter
T65.813SToxic effect of latex, assault, sequela
T65.814AToxic effect of latex, undetermined, initial encounter
T65.814DToxic effect of latex, undetermined, subsequent encounter
T65.814SToxic effect of latex, undetermined, sequela
T65.821AToxic effect of harmful algae and algae toxins, accidental (unintentional), initial encounter
T65.821DToxic effect of harmful algae and algae toxins, accidental (unintentional), subsequent encounter
T65.821SToxic effect of harmful algae and algae toxins, accidental (unintentional), sequela
T65.822AToxic effect of harmful algae and algae toxins, intentional self-harm, initial encounter
T65.822DToxic effect of harmful algae and algae toxins, intentional self-harm, subsequent encounter
T65.822SToxic effect of harmful algae and algae toxins, intentional self-harm, sequela
T65.823AToxic effect of harmful algae and algae toxins, assault, initial encounter
T65.823DToxic effect of harmful algae and algae toxins, assault, subsequent encounter
T65.823SToxic effect of harmful algae and algae toxins, assault, sequela
T65.824AToxic effect of harmful algae and algae toxins, undetermined, initial encounter
T65.824DToxic effect of harmful algae and algae toxins, undetermined, subsequent encounter
T65.824SToxic effect of harmful algae and algae toxins, undetermined, sequela
T65.831AToxic effect of fiberglass, accidental (unintentional), initial encounter
T65.831DToxic effect of fiberglass, accidental (unintentional), subsequent encounter
T65.831SToxic effect of fiberglass, accidental (unintentional), sequela
T65.832AToxic effect of fiberglass, intentional self-harm, initial encounter
T65.832DToxic effect of fiberglass, intentional self-harm, subsequent encounter
T65.832SToxic effect of fiberglass, intentional self-harm, sequela
T65.833AToxic effect of fiberglass, assault, initial encounter
T65.833DToxic effect of fiberglass, assault, subsequent encounter
T65.833SToxic effect of fiberglass, assault, sequela
T65.834AToxic effect of fiberglass, undetermined, initial encounter
T65.834DToxic effect of fiberglass, undetermined, subsequent encounter
T65.834SToxic effect of fiberglass, undetermined, sequela
T65.841AToxic effect of xylazine, accidental (unintentional), initial encounter
T65.841DToxic effect of xylazine, accidental (unintentional), subsequent encounter
T65.841SToxic effect of xylazine, accidental (unintentional), sequela
T65.842AToxic effect of xylazine, intentional self-harm, initial encounter
T65.842DToxic effect of xylazine, intentional self-harm, subsequent encounter
T65.842SToxic effect of xylazine, intentional self-harm, sequela
T65.843AToxic effect of xylazine, assault, initial encounter
T65.843DToxic effect of xylazine, assault, subsequent encounter
T65.843SToxic effect of xylazine, assault, sequela
T65.844AToxic effect of xylazine, undetermined, initial encounter
T65.844DToxic effect of xylazine, undetermined, subsequent encounter
T65.844SToxic effect of xylazine, undetermined, sequela
T65.851AToxic effect of medetomidine, accidental (unintentional), initial encounter
T65.851DToxic effect of medetomidine, accidental (unintentional), subsequent encounter
T65.851SToxic effect of medetomidine, accidental (unintentional), sequela
T65.852AToxic effect of medetomidine, intentional self-harm, initial encounter
T65.852DToxic effect of medetomidine, intentional self-harm, subsequent encounter
T65.852SToxic effect of medetomidine, intentional self-harm, sequela
T65.853AToxic effect of medetomidine, assault, initial encounter
T65.853DToxic effect of medetomidine, assault, subsequent encounter
T65.853SToxic effect of medetomidine, assault, sequela
T65.854AToxic effect of medetomidine, undetermined, initial encounter
T65.854DToxic effect of medetomidine, undetermined, subsequent encounter
T65.854SToxic effect of medetomidine, undetermined, sequela
T65.891AToxic effect of other specified substances, accidental (unintentional), initial encounter
T65.891DToxic effect of other specified substances, accidental (unintentional), subsequent encounter
T65.891SToxic effect of other specified substances, accidental (unintentional), sequela
T65.892AToxic effect of other specified substances, intentional self-harm, initial encounter
T65.892DToxic effect of other specified substances, intentional self-harm, subsequent encounter
T65.892SToxic effect of other specified substances, intentional self-harm, sequela
T65.893AToxic effect of other specified substances, assault, initial encounter
T65.893DToxic effect of other specified substances, assault, subsequent encounter
T65.893SToxic effect of other specified substances, assault, sequela
T65.894AToxic effect of other specified substances, undetermined, initial encounter
T65.894DToxic effect of other specified substances, undetermined, subsequent encounter
T65.894SToxic effect of other specified substances, undetermined, sequela
T65.91XAToxic effect of unspecified substance, accidental (unintentional), initial encounter
T65.91XDToxic effect of unspecified substance, accidental (unintentional), subsequent encounter
T65.91XSToxic effect of unspecified substance, accidental (unintentional), sequela
T65.92XAToxic effect of unspecified substance, intentional self-harm, initial encounter
T65.92XDToxic effect of unspecified substance, intentional self-harm, subsequent encounter
T65.92XSToxic effect of unspecified substance, intentional self-harm, sequela
T65.93XAToxic effect of unspecified substance, assault, initial encounter
T65.93XDToxic effect of unspecified substance, assault, subsequent encounter
T65.93XSToxic effect of unspecified substance, assault, sequela
T65.94XAToxic effect of unspecified substance, undetermined, initial encounter
T65.94XDToxic effect of unspecified substance, undetermined, subsequent encounter
T65.94XSToxic effect of unspecified substance, undetermined, sequela

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