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Body Weight Percentile Adjusted for Height (90th Percentile)

Published: August 9, 2026Updated: August 16, 2026

This test compares your current body weight relative to what is typical for your height, using data from the 90th percentile of healthy children and adults. It helps assess whether your weight is within expected ranges for your growth stage.

Quick summary

["This measurement helps track if your weight aligns with healthy growth patterns based on your height."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
11774-7
Short code
[Prctl] Bdy weight.90th GA Corr
Synonyms
[Prctl] Bdy weight.90th GA Corr
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
estimated-pop-birth-wgt-gestational-age-corr-ref
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

The test calculates a standardized score (z-score) for your body weight relative to the 90th percentile of individuals of similar height. This score accounts for how your weight compares to what is considered typical for your age and height group, adjusting for growth trends over time.

Why It Matters in Clinical Context

This measurement is often used in pediatric care to monitor growth patterns, especially when evaluating conditions that may affect weight gain or distribution. It can help identify whether weight changes are consistent with healthy development or may signal underlying health concerns.

How It’s Used in Practice

Healthcare providers may use this test to track long-term weight trends, especially in children, to ensure they are growing at a rate consistent with their height. It can complement other growth measurements like height, BMI, or waist circumference.

Common Uses and Considerations

This test is particularly useful in pediatric settings to monitor growth trajectories, but it may also be used in adults with specific clinical concerns about weight relative to height. It’s not a standalone diagnostic tool but supports broader assessments of health and development.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Body Weight Z-Score (90th Percentile)

Frequently asked questions

What does a high or low result mean for my health?
A high or low result doesn’t indicate a specific medical condition alone, but it may signal that your weight relative to height is outside typical ranges for your age and height group. Your healthcare provider will discuss this in the context of your overall health, growth history, and other measurements.
How often will I need this test?
The frequency depends on your age, health status, and clinical needs. In children, it may be part of routine growth monitoring, while adults might receive it only if there are concerns about weight changes or related health risks.
Can I influence my results through diet or activity?
Yes, lifestyle factors like diet, physical activity, and sleep can impact weight trends. Making healthy choices can help ensure your weight aligns more closely with expected growth patterns, especially in children.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy