ICD-10-CM Billable Code

T40.991

Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional)

Clinical Classification Guidelines

Inclusion Terms

  • Poisoning by other psychodysleptics [hallucinogens] NOS

Medical Intelligence & Overview

ICD-10 code T40.991 refers to cases where someone has been accidentally poisoned by hallucinogens or psychodysleptics. These substances can alter perception, mood, and various mental states, and poisoning can lead to serious health issues. This condition is categorized as an unintentional or accidental poisoning, highlighting the importance of awareness and safety when handling or being exposed to these substances.

Causes & Symptoms

Clinical Causes: Accidental ingestion of hallucinogenic substances, especially when trying unfamiliar or illicit drugs. Misidentification of certain plants or medications containing hallucinogenic compounds. Exposure to psychoactive substances through contaminated products or accidental inhalation/absorption. Lack of awareness or understanding about the potency and risks of specific psychodysleptics.

Key Symptoms: Hallucinations — seeing or hearing things that aren't there. Altered perception of time, space, or surroundings. Confusion or disorientation. Anxiety, paranoia, or panic attacks. Physical effects such as increased heart rate, blood pressure fluctuations, dizziness, or nausea. Dilated pupils and tremors. Possible episodes of psychosis or agitation.

Diagnostic & Treatment

Diagnosis Path: Diagnosis typically involves a comprehensive medical history, including recent exposure to or ingestion of suspected substances, along with physical examinations. Laboratory tests such as blood or urine analysis may confirm the presence of certain hallucinogens or related compounds. Healthcare providers also assess symptoms to differentiate from other neurological or psychiatric conditions.

Treatment Protocols: Management of poisoning by psychodysleptics focuses on supportive care. This may include monitoring vital signs, ensuring the person's safety, and managing symptoms. In some cases, activated charcoal may be used if ingestion was recent to reduce absorption. Psychological support and counseling are often recommended, especially if ongoing mental health effects are observed. Hospitalization may be necessary if severe symptoms or complications occur.

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is T40.991 a billable ICD-10 code?
Yes, T40.991 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report T40.991?
Clinical documentation must specify the nature of Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional) and any associated comorbidities for accurate reporting.

Cite this Clinical Reference