Hypothermia, not associated w low environmental temperature

This code signifies a patient's core body temperature falling below 35°C (95°F) due to an underlying medical condition or systemic dysfunction, rather than exposure to a cold environment. It indicates a physiological inability to maintain normal body temperature, often secondary to illness or medication.

Use this code when documentation clearly indicates hypothermia as a manifestation of an internal medical process, such as sepsis, endocrine disorders (e.g., hypothyroidism), neurological conditions, or drug overdose. The physician's notes should explicitly state that the hypothermia is not due to external cold exposure.

• Always review documentation to confirm the etiology of the hypothermia.
• Distinguish carefully from hypothermia caused by external cold (T68) or accidental hypothermia (T68).
• Sequence this code after the underlying medical condition causing the hypothermia, if applicable.