ICD-10-CM 2027 diagnosis code

T44.0X2Poisoning by anticholinesterase agents, intentional self-harm

Not billable — use a more specific codeRequires 7th character

T44.0X2 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.Short description: Poisoning by anticholinesterase agents, self-harm

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 T44.0X2

T44.0X2 is the ICD-10-CM diagnosis code for poisoning by anticholinesterase agents, intentional self-harm. It belongs to category T44 (poisoning by, adverse effect of and underdosing of drugs primarily affecting the autonomic nervous system), block T36-T50 (poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances) 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 3 subcodes must be used instead.

Within T44.0X (poisoning by, adverse effect of and underdosing of anticholinesterase agents), T44.0X2 is specifically for poisoning by anticholinesterase agents, intentional self-harm. Related codes cover poisoning by anticholinesterase agents, accidental (unintentional) (T44.0X1), poisoning by anticholinesterase agents, assault (T44.0X3), poisoning by anticholinesterase agents, undetermined (T44.0X4), adverse effect of anticholinesterase agents (T44.0X5) and underdosing of anticholinesterase agents (T44.0X6).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

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

7th character

The appropriate 7th character is to be added to each code from category T44

Ainitial encounterT44.0X2A
Dsubsequent encounterT44.0X2D
SsequelaT44.0X2S

Notes that apply from higher levels

Instructions written at a parent level also apply to T44.0X2.

Broader instructions also apply from T36-T50 Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Table of Drugs & Neoplasms entries

Ambenonium (chloride) — Poisoning Intentional self-harm
Anticholinesterase — Poisoning Intentional self-harm
Anticholinesterase › organophosphorus — Poisoning Intentional self-harm
Anticholinesterase › reversible — Poisoning Intentional self-harm
Cholinergic (drug) NEC › organophosphorus — Poisoning Intentional self-harm
DFP — Poisoning Intentional self-harm
Diflos — Poisoning Intentional self-harm
Difluorophate — Poisoning Intentional self-harm
Diisopropylfluorophosphate — Poisoning Intentional self-harm
Distigmine (bromide) — Poisoning Intentional self-harm
Dyflos — Poisoning Intentional self-harm
Edrophonium — Poisoning Intentional self-harm
Edrophonium › chloride — Poisoning Intentional self-harm
Galantamine — Poisoning Intentional self-harm
Isoflurophate — Poisoning Intentional self-harm
Neomycin (derivatives) › with › neostigmine — Poisoning Intentional self-harm
Neostigmine bromide — Poisoning Intentional self-harm
Prostigmin — Poisoning Intentional self-harm
Pyridostigmine bromide — Poisoning Intentional self-harm
Tacrine — Poisoning Intentional self-harm
Tetrahydroaminoacridine — Poisoning Intentional self-harm

Code history

2016
2017
2018
2019
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 T44.0X2

Is T44.0X2 billable?: No. T44.0X2 is a header code. Report one of its more specific subcodes instead.