HL7 Terminology (THO), published by HL7 International - Vocabulary Work Group. This guide is not an authorized publication; it is the continuous build for version 5.5.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/UTG/ and changes regularly. See the Directory of published versions

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NamingSystem:

Official URL: http://terminology.hl7.org/NamingSystem/imei-identifier				Version: 1.0.0
Active as of 2021-06-14			Responsible: IHE Patient Care Devices (PCD)	Computable Name: IMEI_Identifier

The International Mobile Equipment Identity (IMEI) is a number, usually unique, to identify 3GPP and iDEN mobile phones, as well as some satellite phones. The IMEI consists of 15 decimal digits: 14 digits plus a check digit while the IMEISV consists of 16 decimal digits: 14 digits plus two software version digits. These numbers includes information on the origin, model, and serial number of the device. The structure of the IMEI/SV is specified in 3GPP TS 23.003. The model and origin comprise the initial 8-digit portion of the IMEI/SV, known as the Type Allocation Code (TAC). The remainder of the IMEI is manufacturer-defined, with a Luhn check digit at the end.