Asphyxiation due to smothering under pillow, self-harm, subs

This code describes a non-fatal instance of self-inflicted asphyxiation by smothering with a pillow. It indicates that the patient survived the initial event and is now presenting for follow-up care related to this specific act of intentional self-harm.

Use this code for subsequent encounters when a patient receives ongoing medical or psychological care after attempting suicide by smothering themselves with a pillow. This includes follow-up appointments for physical injuries, mental health evaluations, or therapy sessions directly related to the self-harm attempt.

• Ensure the documentation clearly states "intentional self-harm" and specifies "smothering under pillow" as the mechanism.
• The "D" seventh character signifies a subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.
• Always code an underlying mental health condition (e.g., major depressive disorder) as a primary diagnosis if applicable.