Version 2.78

Status Information

Status
DEPRECATED
Reason
Erroneous
Comment
DXA measurements are just of the calcaneus bone, not of the broader region.
Map-To Long Common Name Mapping Guidance
38266-3 DXA Calcaneus [T-score] Bone density DXA measurements are just of the calcaneus bone, not of the broader region.

Term Description

T-score = (BMD - MEAN_BMD) / SD, where BMD = subject's bone mineral density (BMD), MEAN_BMD = mean BMD of reference population, and SD = standard deviation of BMD within reference population.
Source: Regenstrief LOINC

Part Description

LP34385-2   Bone density
Bone density scanning (Also called dual-energy x-ray absorptiometry (DXA or DEXA) or bone densitometry) is a procedure used to measure bone loss. DXA is the standard for measuring bone mineral density (BMD), or the amount of bone matter per square centimeter of bone. It is a non-invasive procedure involving minimal radiation exposure. While measurements are typically made over the lumbar spine or proximal hip; the femur, radius/ulna, or calcaneus (heel) may be measured. Results may be reported as: 1) Measured density reported in either g/cm2 (grams per centimeters squared) or mg/cm2 (milligrams per centimeters squared), 2) T-score, the number of standard deviations above or below the mean for a healthy young adult of the same gender as the patient, and with peak bone mass, and 3) Z-score, the number of standard deviations above or below the mean for the patient's age and gender (race and weight may optionally be included). The most common reason for measuring bone density is to screen for and/or diagnose osteoporosis. Limitations for this technique may include but are not limited to the size of the patient and thickness of tissue overlying the bone. Source: Regenstrief LOINC

Fully-Specified Name

Component
Bone density
Property
Tscore
Time
Pt
System
Hindfoot+Midfoot
Scale
Qn
Method
XR.DXA

Additional Names

Short Name
Deprecated Hind+Mid ft DXA T-score BMD

Basic Attributes

Class
RAD
Type
Clinical
First Released
Version 2.52
Last Updated
Version 2.58
Order vs. Observation
Both

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Densidad osea:Tscore:Punto temporal:Retropié + Mediopié:Cuantitativo:XR.DXA
it-IT Italian (Italy) Densità ossea:T-score:Pt:Retropiede+Mesopiede:Qn:XR.DXA
Synonyms: Assorbimetria bifotonica a raggi X Dual-Energy X-ray Absorptiometry;DXA Punto nel tempo (episodio) Radiologia Raggi X Retropiede e Mesopiede
zh-CN Chinese (China) 骨密度:T评分:时间点:足后部+足中部:定量型:X射线摄影术.双能X线吸收法
Synonyms: BDM;骨骼密度;骨质密度 T分;T分值;T分数;T得分;T-评分;T评分（分值、得分、分数） XR;X-ray radiography;X光;X-光;X光平片;X射线;X-射线;X射线照相;X线;X-线;X线平片;伦琴射线;伦琴线;平片;平面素片;普通X光照片;普通X光片;普通X光素片;普通X线照片;普通X线片;素片 X射线摄影术（XR、X光、X-光、X射线、X-射线、X射线照相、X线、X-线）.双能X线吸收法;BMD;DEXA;DXA;X射线摄影术.DEXA;光密分度析法;光密度分析法;光密度测定法;双能X-射线吸收测定法;双能X射线吸收骨密度测量仪;双能X线吸收法;双能X线吸收法骨密度测定;双能X线吸收测量;双能X线吸收测量法;双能X线骨密度仪;双能X线骨密度吸收仪;双能X线骨密度测量仪;密度测定法;密度计量学;显微测密术;显象密度测定;显象测密术;显象测密法;测光密度术;测密度术;测密度法;骨密度仪;骨密度扫描 光密分度析法;光密度分析法;光密度测定法;双能X-射线吸收测定法;双能X射线吸收骨密度测量仪;双能X线吸收法;双能X线吸收法骨密度测定;双能X线吸收测量;双能X线吸收测量法;双能X线骨密度仪;双能X线骨密度吸收仪;双能X线骨密度测量仪;密度测定法;密度计量学;显微测密术;显象密度测定;显象测密术;显象测密法;测光密度术;测密度术;测密度法;骨密度仪;骨密度扫描;骨密度测定;骨密度测量;骨密度测量仪;骨密度测量技术;骨密度测量计;骨密度计;双能X线骨密度测定法;双能X线骨密度测定;Dual Energy X 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 成像;放射医学;放射学;显像 时刻;随机;随意;瞬间 足后部（足后段）+足中部（足中段）;足部（足、脚部、脚）

Example Units

Unit Source
{Tscore} Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=77454-7