37164-1

LOINC code 37164-1 identifies "XR Facial bones Lateral and Caldwell and Waters". WATERS-The X-ray beam is perpendicular to the film and makes an angle of about 40 deg with the canthomeatal line. Nose and chin are then more or less in contact with the radiographic plate. Syns: Occipitomental projection, parietoacanthial projection. C

This code measures Views lateral + Caldwell + Waters in Head>Facial bones. It belongs to the RAD class in the LOINC classification.

LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.