ICD-10-CM Diagnosis Code (2025)
Official Description for T40.3X
Poisoning by, adverse effect of and underdosing of methadone
Coding Notes & Guidelines for T40.3X
Poisoning by methadone NOS
Parent Code (Less Specific):
About ICD-10-CM Code T40.3X (Poisoning by)
ICD-10-CM code T40.3X is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM T40.3X became effective on October 1, 2024.
This page provides detailed information about T40.3X - Poisoning by, adverse effect of and underdosing of methadone. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Poisoning by related to adverse effect of and underdosing of methadone.