Drown in natural water, undetermined intent, init

This code signifies an incident where an individual has experienced a non-fatal drowning or submersion event in a natural body of water (e.g., ocean, lake, river), and the circumstances surrounding the event do not clearly indicate whether it was accidental, intentional self-harm, or assault. The "initial encounter" designation indicates that this code is used for the first time the patient is receiving active treatment for the injury.

This code is appropriate when a patient presents with symptoms or complications from a near-drowning in natural water, and the intent of the submersion cannot be definitively determined from the available documentation. This often occurs in cases where witnesses are absent or their accounts are inconclusive regarding the event's origin. It should be applied during the initial phase of treatment for the related injuries.

• Ensure documentation explicitly states "natural water" to differentiate from artificial bodies of water (e.g., swimming pools).
• Only use this code when the intent is truly "undetermined"; if intent is known (e.g., accidental, self-harm), use the appropriate intent code.
• The "A" seventh character is crucial for initial encounters; subsequent care would use "D" or "S."