Parent chapter HS 90 - Optical, photographic, measuring, checking, precision and medical instruments Subheadings in this heading HS 901910HS subheading 901910HS 901920HS subheading 901920 Final HS codes HS 90191010Electrically operatedHS 90191090OtherHS 90192010Invasive ventilatorsHS 90192020Other ventilatorsHS 90192090Other