LOINC Code 56054-0: Deprecated PhenX measure - arm span
56054-0 is a LOINC code used to identify Deprecated PhenX measure - arm span in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component PhenX measure - arm span. It is commonly used with the system or sample type ^Patient.
What is this code?
LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component PhenX measure - arm span. It is commonly used with the system or sample type ^Patient.
When is it used?
- Used in lab systems, EHRs, and clinical data exchange.
- May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
- Status: DEPRECATED
- Method: PhenX
What it does not mean
- The code identifies the observation or test, not the actual result.
Key facts
- Deprecated PhenX measure - arm span
- PhenX measure - arm span
- Measurement of the maximum distance between the extended middle fingers of the right and left hands. Generally, in children the arm span measurement is 1 cm shorter than height; in adolescents the arm span is the same length as height; and in adults the arm span measurement exceeds height by approximately 5 cm. Arm span is highly correlated with stature and may be used to estimate an individual's stature when height or recumbent length cannot be measured. Since height correlates with lung volume and certain other pulmonary function parameters, arm span can be used as a predictor or surrogate for height in predicting selected pulmonary parameters. In addition, an increased arm span to height ratio can suggest a loss of height such as in kyphosis and kyphoscoliosis which can, in turn, be associated with osteopenia and osteoporosis.
- Pan; Panel; PANEL.PHENX; Panl; Pnl; Point in time; Random; Upper extremity
Where you may see this code
You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.
Common synonyms
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.