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T40.3X6A - Underdosing of methadone, initial encounter


The ICD 10 Code for Underdosing of methadone, initial encounter is listed as T40.3X6A.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: T40.3X6A
Description: Underdosing of methadone, initial encounter
Diagnostic Related Groups
(MS-DRG v30.0)
949 - Aftercare W Cc/mcc
950 - Aftercare W/o Cc/mcc
Chapter Injury, poisoning and certain other consequences of external causes (S00-T88)
Block Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances (T36-T50)
Parent T40.3X6 - Underdosing of methadone
ICD-10-CM Siblings (same level / similar specificity) of T40.3X6A:
T40.3X6D - Underdosing of methadone, subsequent encounter
T40.3X6S - Underdosing of methadone, sequela