ICD-10-CM > V00-Y99 > W00-W19 > W16 > W16.1 > W16.12 > W16.121 W16.121 Fall into natural body of water striking bottom causing drowning and submersion Non-Billable/Non-Specific Type 1 Excludes drowning and submersion while in natural body of water without fall (W69) Codes W16.121A..., initial encounterW16.121D..., subsequent encounterW16.121S..., sequela