ICD-10-CM > S00-T88 > T66-T78 > T70 > T70.1 T70.1 Sinus barotrauma Non-Billable/Non-Specific Applicable To AerosinusitisEffects of change in ambient atmospheric pressure on sinuses Codes T70.1XXA..., initial encounterT70.1XXD..., subsequent encounterT70.1XXS..., sequela