ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.7 > T22.72 > T22.722 T22.722 Corrosion of third degree of left elbow Non-Billable/Non-Specific Codes T22.722A..., initial encounterT22.722D..., subsequent encounterT22.722S..., sequela