Comment:

looks like this element describes all Hgb lab results that are mass concentration alligned with LOINC. LOINC doesn't differentiate powers of 10, for reporting so mg/dL. Mg/L, etc are all designated by the same LOINC code. For all the quanitative lab result values, how do you intend to distinguish results reported by the same scale, that differ by a power of 10, 100, etc? Will results of 1.2 be comginled with 12 and 120?

Summary:

Lab value units and scales