Hypothermia

This code represents a dangerously low body temperature, typically defined as a core body temperature below 95°F (35°C). It occurs when the body loses heat faster than it can produce it, leading to impaired physiological function. This condition can range from mild to severe, affecting various organ systems.

Use this code when documentation clearly indicates a patient presenting with a core body temperature below the normal physiological range due to environmental exposure, medical conditions, or drug-induced states. Supporting documentation should include a recorded temperature reading and a physician's diagnosis of hypothermia.

• Always review the medical record for the specific cause of hypothermia, as an additional E-code may be required for external causes.
• Distinguish from "cold exposure" without a documented drop in core body temperature, which would not warrant this diagnosis.
• Consider sequencing this code as a principal diagnosis if it is the primary reason for admission or as a secondary diagnosis if it is a co-morbidity impacting patient care.