ICD-10-CM > V00-Y99 > W20-W49 > W49 > W49.0 W49.0 Item causing external constriction Non-Billable/Non-Specific Codes W49.01Hair causing external constrictionW49.01XA..., initial encounterW49.01XD..., subsequent encounterW49.01XS..., sequelaW49.02String or thread causing external constrictionW49.02XA..., initial encounterW49.02XD..., subsequent encounterW49.02XS..., sequelaW49.03Rubber band causing external constrictionW49.03XA..., initial encounterW49.03XD..., subsequent encounterW49.03XS..., sequelaW49.04Ring or other jewelry causing external constrictionW49.04XA..., initial encounterW49.04XD..., subsequent encounterW49.04XS..., sequelaW49.09Other specified item causing external constrictionW49.09XA..., initial encounterW49.09XD..., subsequent encounterW49.09XS..., sequela