ICD-10-CM > S00-T88 > S90-S99 > S93 > S93.4 > S93.49 S93.49 Sprain of other ligament of ankle Non-Billable/Non-Specific Applicable To Sprain of internal collateral ligamentSprain of talofibular ligament Codes S93.491Sprain of other ligament of right ankleS93.491A..., initial encounterS93.491D..., subsequent encounterS93.491S..., sequelaS93.492Sprain of other ligament of left ankleS93.492A..., initial encounterS93.492D..., subsequent encounterS93.492S..., sequelaS93.499Sprain of other ligament of unspecified ankleS93.499A..., initial encounterS93.499D..., subsequent encounterS93.499S..., sequela