ICD-10-CM > S00-T88 > S80-S89 > S83 > S83.8 > S83.8X > S83.8X2 S83.8X2 Sprain of other specified parts of left knee Non-Billable/Non-Specific Codes S83.8X2A..., initial encounterS83.8X2D..., subsequent encounterS83.8X2S..., sequela