Adverse effect of appetite depressants, subsequent encounter

This code signifies a patient experiencing an unintended and undesirable reaction to a medication prescribed to suppress appetite, during a follow-up visit for the adverse effect. The patient is no longer in the initial phase of treatment for the adverse effect but is receiving continued care.

Apply this code when a patient presents for ongoing management or monitoring of side effects from appetite depressants, such as phentermine or diethylpropion. This includes visits for dose adjustments, medication changes, or continued symptom management related to the adverse drug reaction.

• Always sequence this code after the code for the specific adverse effect (e.g., tachycardia, insomnia).
• Ensure the documentation clearly indicates the encounter is for follow-up care, not the initial treatment of the adverse effect.
• Verify the medication involved is indeed classified as an appetite depressant.