ICD-10-CM Billable Code

T65.91

Toxic effect of unspecified substance, accidental (unintentional)

Clinical Classification Guidelines

Inclusion Terms

  • Poisoning NOS

Medical Intelligence & Overview

ICD-10 code T65.91 refers to cases where an individual has experienced an accidental, unintentional toxic effect from an unspecified substance. This code is used in medical documentation to indicate poisoning where the exact substance involved is not identified, and the incident was unintentional. Such events can occur across various environments and affect individuals of all ages, highlighting the importance of understanding potential causes, symptoms, and general management strategies related to accidental poisonings.

Causes & Symptoms

Clinical Causes: Ingestion of unknown or unrecognized substances, such as medications, chemicals, or household products. Accidental exposure to chemicals or toxic substances at home, work, or outdoors. Use of herbal remedies or supplements without proper knowledge of their contents or toxicity. Children accessing and ingesting hazardous substances stored improperly. Misuse of medications or chemicals that leads to accidental poisoning. Exposure to toxins in contaminated food or water sources.

Key Symptoms: Nausea and vomiting Abdominal pain and cramping Dizziness or lightheadedness Confusion, dizziness, or altered mental state Respiratory difficulty or shortness of breath Skin irritation or rash Seizures or convulsions Unconsciousness or loss of consciousness Weakness or fatigue Unusual odors on breath or skin, depending on the substance involved

Diagnostic & Treatment

Diagnosis Path: Diagnosis of an unspecified toxic effect typically involves a combination of clinical assessment and history-taking. Healthcare providers will inquire about recent exposure to potential toxins, including household items, medications, or environmental contacts. Laboratory tests, such as blood or urine analyses, may be ordered to identify toxic substances or assess organ function. Imaging studies might be used if an ingestion involves radiopaque materials. Because the substance involved is unspecified, diagnosis relies heavily on symptomatic presentation and exposure history.

Treatment Protocols: Ensuring airway, breathing, and circulation are maintained (supportive care). Inducing vomiting or administering activated charcoal if appropriate and within a suitable time frame after ingestion. Providing specific antidotes if any suspected or known antidote is available (though not applicable here due to unspecified substances). Monitoring vital signs and organ function regularly. Treating symptoms such as seizures, arrhythmias, or respiratory issues with appropriate medications. Supporting organ function with IV fluids or other interventions as needed. Consulting specialized poison control centers for guidance on specific management strategies. Preventing further absorption of the toxin and facilitating its elimination when possible.

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 T65.91 a billable ICD-10 code?
Yes, T65.91 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report T65.91?
Clinical documentation must specify the nature of Toxic effect of unspecified substance, accidental (unintentional) and any associated comorbidities for accurate reporting.

Cite this Clinical Reference