ICD-10 Guide

T40.3

Name: ICD-10-CM Medical Diagnosis Codes
Creator: Centers for Medicare & Medicaid Services
License: https://www.cms.gov/medicare/coding/icd10

Non-billable

Poisoning by, adverse effect of and underdosing of methadone

BILLABLE STATUSNo

IMPLEMENTATION DATEOctober 1, 2015

LAST UPDATED08/26/2025

Code Description

ICD-10 T40.3 is a used to indicate a diagnosis of poisoning by, adverse effect of and underdosing of methadone.

Key Diagnostic Point:

Poisoning by, adverse effect of and underdosing of methadone

T40.3

Code Description

Key Diagnostic Point:

Related ICD-10 Codes

T40.3

Code Description

Key Diagnostic Point:

Related ICD-10 Codes