Nontraumatic coma due to underlying condition

This code signifies a state of profound unconsciousness resulting from an internal medical issue rather than an external injury. It indicates a patient's inability to respond to stimuli, with the underlying cause being a disease process or physiological dysfunction.

Use this code when documentation clearly states a patient is in a coma due to a medical condition such as metabolic encephalopathy, severe infection, stroke, or drug overdose. It is appropriate when the coma is not a direct result of trauma.

• Always code the underlying condition causing the nontraumatic coma first, followed by this code.
• Do not use this code if the coma is explicitly stated as traumatic; instead, refer to codes within the S06 category.
• Ensure documentation specifies "nontraumatic" or provides a clear medical etiology for the coma to support this diagnosis.