ICD-10-CM > V00-Y99 > X30-X39 > X37 > X37.4 X37.4 Tidalwave Non-Billable/Non-Specific Codes X37.41Tidal wave due to earthquake or volcanic eruptionX37.41XA..., initial encounterX37.41XD..., subsequent encounterX37.41XS..., sequelaX37.42Tidal wave due to stormX37.42XA..., initial encounterX37.42XD..., subsequent encounterX37.42XS..., sequelaX37.43Tidal wave due to landslideX37.43XA..., initial encounterX37.43XD..., subsequent encounterX37.43XS..., sequela