LOINCActiveBoth

LOINC Code 77606-2: Weight-for-length Per age and sex

77606-2 is a LOINC code used to identify Weight-for-length Per age and sex 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 Weight-for-length. It is commonly used with the system or sample type ^Patient.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

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 Weight-for-length. 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: ACTIVE
  • Order vs observation: Both
  • Method: Per age and sex

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Weight-for-length Per age and sex
  • Weight-for-length
  • BODY WEIGHT.MOLEC; Gender; Len; Per age+sex; Percentile; Point in time; QNT; Quan; Quant; Quantitative; Random; Wt; Wt-for-len

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

Weight-for-length Per age and sexWt-for-len Per age+sexWeight-for-lengthBDYWGT.MOLECPrctlPt^Patient

Frequently asked questions

Code details

Code77606-2
SystemLOINC
Display nameWeight-for-length Per age and sex
DescriptionWeight-for-length
Short nameWt-for-len Per age+sex
ComponentWeight-for-length
PropertyPrctl
TimingPt
System (specimen)^Patient
ScaleQn
MethodPer age and sex
ClassBDYWGT.MOLEC
Example units%
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.52
Last changed2.66

Part names

Weight-for-lengthPrctlPt^PatientQnPer age and sexPercentilePoint in time (spot)

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.