Poisoning by oth nonsteroid anti-inflam drugs, undet, subs

This code signifies a poisoning event involving a non-aspirin NSAID where the intent (accidental, intentional self-harm, assault, or undetermined) cannot be established. It specifically applies to a patient receiving active treatment for the toxic effects of the NSAID after the initial encounter.

Use this code when documenting follow-up care for a patient presenting with symptoms of NSAID toxicity, and the provider has not determined if the poisoning was accidental, intentional, or due to assault. This code is appropriate for subsequent visits related to managing the ongoing effects or complications of the undetermined NSAID poisoning.

• Ensure documentation clearly states "undetermined" intent for the poisoning.
• Confirm this is a subsequent encounter, meaning the patient is still receiving active treatment for the poisoning.
• Always code the specific NSAID if known, using a more precise code from the T39.3 category if applicable.