Poisoning by oth hormone antagonists, accidental, subs

This code signifies an accidental overdose or adverse reaction to a medication that blocks the action of hormones, occurring during a follow-up visit or after the initial treatment phase. The poisoning is unintentional, meaning the patient did not mean to take too much or the wrong medication. This category includes a broad range of hormone antagonists not specified elsewhere.

Apply this code when a patient presents for ongoing management or complications related to an accidental poisoning by a hormone antagonist, such as a GnRH antagonist or an antiandrogen, after the initial acute care has been rendered. This is appropriate for subsequent encounters where the patient is still experiencing effects or receiving treatment for the poisoning. It should be used when the intent of the poisoning was clearly accidental.

• Always assign an additional code for the specific hormone antagonist involved, if known, from categories T38.0-T38.9.
• Ensure the encounter is truly "subsequent" and not the initial treatment for the poisoning; use "A" for initial encounters.
• Verify documentation clearly states the poisoning was accidental and not intentional self-harm or assault.