Heat exhaustion, anhydrotic, subsequent encounter

This code signifies a form of heat exhaustion characterized by the absence of sweating (anhidrosis), indicating a failure of the body's thermoregulatory mechanism. It typically presents with symptoms like dizziness, weakness, headache, and nausea, but without the profuse sweating seen in other types of heat exhaustion.

Apply this code when documenting a patient's follow-up care for previously diagnosed anhydrotic heat exhaustion. This includes visits for monitoring recovery, managing persistent symptoms, or addressing complications that arise after the initial acute episode has been treated.

• Ensure documentation clearly specifies "anhydrotic" heat exhaustion and indicates a subsequent encounter.
• Distinguish from initial encounters (A) or sequela (S) for heat exhaustion.
• Verify that the patient is receiving ongoing care related to the initial heat exhaustion event, not a new episode.