LOINC Code 56055-7: Deprecated PhenX measure - birth weight
56055-7 is a LOINC code used to identify Deprecated PhenX measure - birth weight 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 - birth weight. 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 - birth weight. 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 - birth weight
- PhenX measure - birth weight
- Birth weight (measured, recalled, or vital records/chart abstraction) is the weight of the infant in kilograms or pounds at birth. Birth weight is directly related to gestational age. Birth weight is associated not only with the health status of the infant/child, but has also been linked to later-life conditions-such as obesity, hypertension, kidney disease, diabetes, and other chronic conditions. Birth weight is influenced by genetics, maternal health, prenatal health of the mother, environmental factors, multiple gestation births, and other factors. Low birth weight poses significant health risks.
- Pan; Panel; PANEL.PHENX; Panl; Pnl; Point in time; Random; Wt
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.