Adverse effect of unspecified hormone antagonists, sequela

This code signifies a long-term or late-developing adverse effect resulting from the use of a hormone antagonist, where the specific type of hormone antagonist is not documented. It indicates that the patient experienced an undesirable or harmful reaction to the medication, and this reaction has persistent consequences even after the initial event.

Apply this code when documenting a sequela (e.g., chronic organ damage, permanent disability, or persistent symptoms) that is directly attributable to a past adverse reaction to a hormone antagonist, and the specific drug involved is unknown or unspecifiable. This code is appropriate for follow-up encounters addressing these lasting effects.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past adverse effect of an unspecified hormone antagonist.
• Avoid using this code if the specific hormone antagonist is known; instead, use a more specific T38 subcategory.