Adverse effect of other hormone antagonists, sequela

This code signifies a long-term or residual condition resulting from a past adverse reaction to a hormone antagonist medication. These are typically chronic issues that persist after the acute phase of the adverse effect has resolved.

Apply this code when documenting a patient's current health problem that is directly attributable to a previous adverse effect of a hormone antagonist, such as persistent organ damage or chronic pain. This is used when the acute adverse effect is no longer present, but its lasting consequences are being treated.

• Always sequence this code after the code for the specific sequela (e.g., chronic kidney disease, neuropathy).
• Ensure documentation clearly links the current condition to a past adverse effect of a hormone antagonist.
• Do not use this code for acute adverse effects; those require codes from the T38.99 category without the "S" seventh character.