LOINC Code 56059-9: Deprecated PhenX measure - hand dominance
56059-9 is a LOINC code used to identify Deprecated PhenX measure - hand dominance 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 - hand dominance. 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 - hand dominance. 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 - hand dominance
- PhenX measure - hand dominance
- Dominance is measured to assess the movement, mobility, and flexibility of an individual to determine which side of the body the study subject favors or the strength of hand activity. This measure is used to determine which hand is dominant or more skilled than the other for fine motor tasks. Of the general population ~90% have right hand dominance, ~10% have left hand dominance, and ~1% is mixed-handed or can use either hand interchangeably to complete a fine motor task (Porac 1981). Hand dominance is thought to be influenced by genetics, and loci for relative hand skill have been mapped.
- 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.