T46.5
Poisoning by, adverse effect of and underdosing of other antihypertensive drugs
Clinical Classification Guidelines
Excludes Type 2
- poisoning by, adverse effect of and underdosing of beta-adrenoreceptor antagonists (T44.7)
- poisoning by, adverse effect of and underdosing of calcium-channel blockers (T46.1)
- poisoning by, adverse effect of and underdosing of diuretics (T50.0-T50.2)
Medical Intelligence & Overview
ICD-10 code T46.5 refers to cases involving poisoning, adverse reactions, or underdosing related to various antihypertensive medications. These drugs are used to manage high blood pressure, but incorrect use or certain adverse responses can lead to health complications. Recognizing the signs and understanding the causes can help ensure prompt treatment and management.
Causes & Symptoms
Clinical Causes: Overdosage or accidental ingestion of antihypertensive medications Incorrect medication dosing, such as underdosing or overdosing Drug interactions that enhance toxicity Individual sensitivity or allergic reactions to specific antihypertensive drugs Mixing multiple medications without medical guidance Use of expired or compromised medications Failure to adjust medication during illness or other health changes
Key Symptoms: Dizziness, particularly when standing up quickly (orthostatic hypotension) Fainting or near-fainting episodes Rapid or irregular heartbeat Weakness or fatigue Swelling in the legs or ankles Shortness of breath Confusion or altered mental state Nausea and vomiting Cold or clammy skin Blurred vision or headaches
Diagnostic & Treatment
Diagnosis Path: The diagnosis involves a thorough review of the patient's medical history, medication usage, and presenting symptoms. Healthcare providers may perform physical examinations and order laboratory tests, which can include blood tests to measure drug levels, kidney function, and electrolyte balance. Identifying recent medication changes or exposures is crucial in establishing the cause. In some cases, specialized tests or toxicology screenings may be necessary to detect drug poisoning or adverse effects.
Treatment Protocols: Treatment focuses on stabilizing the patient and reversing the effects of the poisoning or adverse reaction. This may include:
Clinical Advice & FAQs
Billing Guidance
Is T46.5 a billable ICD-10 code?
Yes, T46.5 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report T46.5?
Clinical documentation must specify the nature of Poisoning by, adverse effect of and underdosing of other antihypertensive drugs and any associated comorbidities for accurate reporting.
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