Drug Overdose ICD-10-CM Codes

Explore the essential ICD-10 codes used for drug overdose, their clinical applications, and their significance in medical documentation. 

By Matt Olivares on Feb 29, 2024.

Fact Checked by RJ Gumban.

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Drug Overdose ICD-10-CM Codes

What ICD-10 Codes are Used for Drug Overdose

Correctly deciphering and applying ICD-10 codes for drug overdose is critical to medical documentation and billing. These codes not only facilitate accurate record-keeping but also ensure streamlined healthcare processes. Here, we delve into some of the most frequently used ICD-10 codes for drug overdose and their clinical descriptions.

  • T50.911A: This code indicates poisoning by, adverse effect of, and underdosing of multiple unspecified drugs, medicaments, and biological substances, accidental (unintentional), initial encounter. Clinically, it's deployed when the exact substance causing the adverse reaction is unknown or unreported. The broad spectrum covered by this code makes it widely applicable in various clinical scenarios where the causative substance isn't identified.
  • T50.901A: This code is designated for instances of poisoning by an unspecified drug or medicament, accidental (unintentional), or initial encounter. Similar to T50.911A, this code is used when the specific drug isn't identified. However, unlike the former, this code does not extend to biological substances.
  • T50.991A: This code refers to other complications from an unspecified drug, medicament, or biological substance, accidental (unintentional) initial encounter. This code comes into play when a patient experiences complications following the initial encounter, with the substance still unspecified. It captures the complexity of drug overdose cases where further complications arise after the initial encounter.
  • T40.1X1A: This code is specifically used for poisoning by heroin, accidental (unintentional), initial encounters. It represents cases where heroin has been accidentally ingested or administered, leading to harmful effects. Given the increasing incidence of opioid misuse, this code is particularly significant in today's clinical landscape.
  • Y63.2: This code signifies failure in dosage during surgical and medical care. It's used when a drug dosage error occurs during medical procedures, leading to adverse effects. This code underscores the necessity of meticulousness in drug administration during medical care.
  • T36-T50: These codes pertain to poisoning by drugs, medicaments, and biological substances. They encompass a wide range of substances, from antibiotics (T36) to hormones and their synthetic substitutes (T38) to agents primarily affecting the cardiovascular system (T46).

For an interactive understanding, take advantage of our explainer video. 

Explore our website for a more detailed exploration of Drug Overdose ICD Codes. Knowledge of these codes is imperative for healthcare professionals engaged in patient care, medical documentation, and billing processes.

Which Drug Overdose ICD codes are Billable:

All the above codes (T50.911A, T50.901A, T50.991A, T40.1X1A, Y63.2) are billable.

Clinical Information

  • A drug overdose is a critical medical condition that occurs when an individual ingests or applies a drug or other substance in quantities more substantial than what's medically recommended or safe. The severity of the situation can range from mild discomfort to life-threatening emergencies.
  • Overdoses can stem from various scenarios - recreational use, therapeutic errors, or intentional misuse. Recreational overdoses occur when individuals intentionally consume drugs for their mind-altering effects, exceeding safe limits. Therapeutic errors refer to inadvertent overdoses where there might be a miscalculation in dosage by healthcare providers or the patient themselves. Intentional misuse signifies deliberate over-consumption with the aim of self-harm or suicide.
  • The symptoms of a drug overdose can vary widely, depending on the type of drug consumed and the quantity taken. Mild symptoms could include drowsiness, confusion, and nausea. More severe cases might present with seizures, respiratory distress, unconsciousness, or even death.
  • The onset of symptoms can be swift or gradual, depending on the drug's nature and the mode of administration. Some substances may cause immediate reactions, while others might lead to slowly progressing symptoms.
  • Immediate medical attention is crucial for any suspected drug overdose. Timely intervention can significantly improve the prognosis and prevent potential complications. It's essential to provide emergency responders with as much information as possible about the drug consumed, the quantity, time of ingestion, and any existing medical conditions the individual may have.
  • Treatment for drug overdose varies based on the drug involved and the patient's condition. It may involve supportive care, specific antidotes, decontamination methods like activated charcoal, or life-saving measures such as artificial respiration or defibrillation.

Synonyms Include:

  • Accidental drug poisoning
  • Drug intoxication
  • Overdose poisoning
  • Accidental medicinal poisoning
  • Medicament poisoning
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Commonly asked questions

When to use a Drug Overdose ICD code?

Use a drug overdose ICD code when documenting a case where a patient has taken drugs in quantities greater than recommended, leading to adverse effects.

What are the common treatments for Drug Overdose Diagnosis Codes?

Treatments vary widely based on the type of drug taken but may include activated charcoal, antidotes, life-support measures like breathing support, and intravenous fluids.

What does a diagnosis code for Drug Overdose mean?

A diagnosis code for drug overdose indicates that a patient has taken a drug in quantities greater than recommended, leading to adverse effects. The specific code can give additional information about the type of drug and whether the overdose was accidental or intentional.

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