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 T48 – Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system (T48) > 2024 ICD-10-CM Codes T48.4 – Poisoning by, adverse effect of and underdosing of expectorants > 2024 ICD-10-CM Codes T48.4X – Poisoning by, adverse effect of and underdosing of expectorants (T48.4X) > 2024 ICD-10-CM Codes T48.4X1 – Poisoning by expectorants, accidental (unintentional)