ICD-10-CM > S00-T88 > T20-T25 > T24 > T24.4 T24.4 Corrosion of unspecified degree of lower limb, except ankle and foot Non-Billable/Non-Specific Code First (T51-T65) to identify chemical and intent Use Additional external cause code to identify place (Y92) Codes T24.40Corrosion of unspecified degree of unspecified site of lower limb, except ankle and footT24.401Corrosion of unspecified degree of unspecified site of right lower limb, except ankle and footT24.401A..., initial encounterT24.401D..., subsequent encounterT24.401S..., sequelaT24.402Corrosion of unspecified degree of unspecified site of left lower limb, except ankle and footT24.402A..., initial encounterT24.402D..., subsequent encounterT24.402S..., sequelaT24.409Corrosion of unspecified degree of unspecified site of unspecified lower limb, except ankle and footT24.409A..., initial encounterT24.409D..., subsequent encounterT24.409S..., sequelaT24.41Corrosion of unspecified degree of thighT24.411Corrosion of unspecified degree of right thighT24.411A..., initial encounterT24.411D..., subsequent encounterT24.411S..., sequelaT24.412Corrosion of unspecified degree of left thighT24.412A..., initial encounterT24.412D..., subsequent encounterT24.412S..., sequelaT24.419Corrosion of unspecified degree of unspecified thighT24.419A..., initial encounterT24.419D..., subsequent encounterT24.419S..., sequelaT24.42Corrosion of unspecified degree of kneeT24.421Corrosion of unspecified degree of right kneeT24.421A..., initial encounterT24.421D..., subsequent encounterT24.421S..., sequelaT24.422Corrosion of unspecified degree of left kneeT24.422A..., initial encounterT24.422D..., subsequent encounterT24.422S..., sequelaT24.429Corrosion of unspecified degree of unspecified kneeT24.429A..., initial encounterT24.429D..., subsequent encounterT24.429S..., sequelaT24.43Corrosion of unspecified degree of lower legT24.431Corrosion of unspecified degree of right lower legT24.431A..., initial encounterT24.431D..., subsequent encounterT24.431S..., sequelaT24.432Corrosion of unspecified degree of left lower legT24.432A..., initial encounterT24.432D..., subsequent encounterT24.432S..., sequelaT24.439Corrosion of unspecified degree of unspecified lower legT24.439A..., initial encounterT24.439D..., subsequent encounterT24.439S..., sequelaT24.49Corrosion of unspecified degree of multiple sites of lower limb, except ankle and footT24.491Corrosion of unspecified degree of multiple sites of right lower limb, except ankle and footT24.491A..., initial encounterT24.491D..., subsequent encounterT24.491S..., sequelaT24.492Corrosion of unspecified degree of multiple sites of left lower limb, except ankle and footT24.492A..., initial encounterT24.492D..., subsequent encounterT24.492S..., sequelaT24.499Corrosion of unspecified degree of multiple sites of unspecified lower limb, except ankle and footT24.499A..., initial encounterT24.499D..., subsequent encounterT24.499S..., sequela