Heat syncope, subsequent encounter

This code signifies a fainting episode or temporary loss of consciousness caused by exposure to high temperatures, occurring during a follow-up visit. It represents a non-fatal, transient cerebral hypoperfusion event due to heat stress, often accompanied by symptoms like dizziness, lightheadedness, and nausea.

Apply this code when a patient presents for ongoing management or evaluation of heat syncope after the initial episode has been treated. This includes follow-up appointments to monitor recovery, assess for residual symptoms, or provide patient education on prevention.

• Ensure documentation clearly indicates this is not the initial encounter for the heat syncope.
• Verify the syncope was directly attributable to heat exposure.
• Consider additional codes for any underlying conditions or complications.