Heat exposure on board unspecified watercraft, subs encntr

This code indicates a patient presenting for follow-up care or treatment of an injury or condition resulting from heat exposure while on an unspecified type of watercraft. This could include heatstroke, heat exhaustion, or other heat-related illnesses. The "subsequent encounter" designation signifies that the initial treatment for the heat exposure has already been provided.

Use this code for patients returning for further evaluation, management, or recovery from a heat-related illness that occurred on a boat, ship, or other water vessel, where the specific type of watercraft is not documented. This applies to scenarios such as follow-up appointments for dehydration, monitoring for organ damage, or physical therapy related to prolonged heat exposure.

• Ensure documentation clearly states the encounter is for follow-up care related to the initial heat exposure.
• Only use when the type of watercraft is not specified in the medical record.
• Pair with an external cause code (e.g., Y92.83x) to specify the place of occurrence if known.