T402026
Non-billable
Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]
Clinical Notes
Frequently Asked Questions
Code Hierarchy
Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)
...and underdosing of systemic antibiotics
...and underdosing of other systemic anti-infectives and antiparasitics
...and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified
...and underdosing of nonopioid analgesics, antipyretics and antirheumatics
T40
...and underdosing of narcotics and psychodysleptics [hallucinogens]...opium
...adverse effect of heroin
...other opioids
...methadone
...other synthetic narcotics
...cocaine
...other and unspecified narcotics
...cannabis (derivatives)
...adverse effect of lysergide [LSD]
...other and unspecified psychodysleptics [hallucinogens]
...and underdosing of anesthetics and therapeutic gases
...and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugs
...and underdosing of psychotropic drugs, not elsewhere classified
...and underdosing of drugs primarily affecting the autonomic nervous system
...and underdosing of primarily systemic and hematological agents, not elsewhere classified
...and underdosing of agents primarily affecting the cardiovascular system
...and underdosing of agents primarily affecting the gastrointestinal system
...and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system
...and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
...and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
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2,271,559 Medicare hospitalizations across 5 DRGs for codes in T40
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Official Guidelines
Chapter 19: Injury, Poisoning, and Other External Causes
Official coding guidelines for S00-T88