ICD-10-CM > S00-T88 > S90-S99 > S99 > S99.9 S99.9 Unspecified injury of ankle and foot Non-Billable/Non-Specific Codes S99.91Unspecified injury of ankleS99.911Unspecified injury of right ankleS99.911A..., initial encounterS99.911D..., subsequent encounterS99.911S..., sequelaS99.912Unspecified injury of left ankleS99.912A..., initial encounterS99.912D..., subsequent encounterS99.912S..., sequelaS99.919Unspecified injury of unspecified ankleS99.919A..., initial encounterS99.919D..., subsequent encounterS99.919S..., sequelaS99.92Unspecified injury of footS99.921Unspecified injury of right footS99.921A..., initial encounterS99.921D..., subsequent encounterS99.921S..., sequelaS99.922Unspecified injury of left footS99.922A..., initial encounterS99.922D..., subsequent encounterS99.922S..., sequelaS99.929Unspecified injury of unspecified footS99.929A..., initial encounterS99.929D..., subsequent encounterS99.929S..., sequela