83309-5

LOINC code 83309-5 identifies "CT Sinuses and Mandible WO contrast". A CT without contrast with the mandible and the sinuses as two distinct imaging foci. For a CT scan without contrast of the entire maxillofacial region, which includes the mandible and sinuses but does not focus on them specifically, use [LOINC: 30802-3].

This code measures Multisection^WO contrast in Head>Sinuses+Mandible. 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.