Poisoning by hemostatic drug, accidental, subs

This code signifies an accidental or unintentional poisoning specifically due to a hemostatic drug, indicating an adverse reaction or overdose. It is used when the patient is receiving active treatment for the poisoning, but it is not the initial encounter for this specific event. The hemostatic agent was administered for its intended purpose, but an unintended toxic effect occurred.

Apply this code for patients presenting for follow-up care, monitoring, or continued treatment of an accidental poisoning by a hemostatic drug. This includes scenarios where the patient was initially treated in an emergency department or inpatient setting and is now being seen in an outpatient clinic or readmitted for complications related to the initial poisoning. It is appropriate for any encounter after the initial one, as long as the patient is still actively being managed for the poisoning.

• Always assign an external cause code (e.g., T36-T50 with a 6th character of 1) to specify the drug involved and the intent.
• Ensure the 7th character "D" is used only for subsequent encounters when the patient is still receiving active treatment for the poisoning.
• Do not use this code for adverse effects of drugs taken as prescribed and properly administered; those require codes from the T36-T50 range with a 5th or 6th character of 5.