ICD-10-CM > S00-T88 > T66-T78 > T69 > T69.0 > T69.02 T69.02 Immersion foot Non-Billable/Non-Specific Applicable To Trench foot Codes T69.021Immersion foot, right footT69.021A..., initial encounterT69.021D..., subsequent encounterT69.021S..., sequelaT69.022Immersion foot, left footT69.022A..., initial encounterT69.022D..., subsequent encounterT69.022S..., sequelaT69.029Immersion foot, unspecified footT69.029A..., initial encounterT69.029D..., subsequent encounterT69.029S..., sequela