Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes S00-T88 – Injury, poisoning and certain other consequences of external causes (S00-T88) > 2024 ICD-10-CM Codes T36-T50 – Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50) > 2024 ICD-10-CM Codes T40 – Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens] (T40) > 2024 ICD-10-CM Codes T40.4 – Poisoning by, adverse effect of and underdosing of other synthetic narcotics (T40.4) > 2024 ICD-10-CM Codes T40.42 – Poisoning by, adverse effect of and underdosing of tramadol (T40.42)