ISO/IEEE 11073-10102:2014 extends the IEEE 11073-10101 Nomenclature by providing support for ECG annotation terminology. It may be used either in conjunction with other IEEE 11073 standards (e.g. ISO/IEEE 11073-10201:2001) or independently with other standards. The major subject areas addressed by the nomenclature include ECG beat annotations, wave component annotations, rhythm annotations, and noise annotations. Additional global and per-lead numeric observation identifiers, ECG lead systems, and additional ECG lead identifiers also are defined.