Adverse effect of selective serotonin reuptake inhibtr, subs

This code signifies a patient experiencing an unintended and undesirable reaction to a selective serotonin reuptake inhibitor (SSRI) during a follow-up visit. These adverse effects can range from mild (e.g., nausea, insomnia) to severe (e.g., serotonin syndrome, suicidal ideation) and are directly attributable to the medication's therapeutic use.

Use this code when a patient presents for ongoing management or evaluation of an adverse effect from an SSRI, and this is not the initial encounter for the adverse effect. This applies to situations where the patient is being monitored, treated, or having their medication adjusted due to the previously identified adverse reaction.

• Always sequence this code after the primary diagnosis indicating the nature of the adverse effect (e.g., R11.0 for nausea).
• Ensure documentation clearly states the SSRI as the causative agent and that this is a subsequent encounter for the adverse effect.
• Distinguish from poisoning (T43.221-T43.224) which involves overdose or wrong substance administered.