Intentional self-harm by drown in natural water, subs

This code signifies a patient presenting for follow-up care, rehabilitation, or management of complications stemming from a prior intentional self-harm event involving drowning or submersion in a natural body of water (e.g., ocean, lake, river). This includes conditions such as aspiration pneumonia, hypoxic brain injury, or psychological sequelae directly resulting from the initial attempt.

Apply this code when documenting subsequent encounters for patients who previously attempted suicide by drowning in natural water and are now receiving ongoing medical or psychiatric treatment. This could involve follow-up appointments for respiratory issues, neurological deficits, or mental health support related to the self-harm incident.

• Ensure the encounter is for a subsequent visit related to the initial self-harm attempt, not the initial acute care.
• Always code the associated physical and mental health conditions resulting from the drowning attempt as primary diagnoses, with this code as a secondary external cause code.
• Verify the documentation explicitly states the self-harm occurred in a "natural water" environment to differentiate from other drowning locations.