LOINCActiveBoth

LOINC Code 77254-1: Albumin/Creatinine DL <= 1.0 mg/L (24H U) [Ratio]

77254-1 is a LOINC code used to identify Albumin/Creatinine DL <= 1.0 mg/L (24H U) [Ratio] 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 Albumin/Creatinine. It is commonly used with the system or sample type Urine.

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 Albumin/Creatinine. It is commonly used with the system or sample type Urine.

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: Detection limit <= 1.0 mg/L

What it does not mean

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

Key facts

  • Microalbumin/Creatinine [Ratio] in 24 hour Urine by Detection limit <= 1.0 mg/L
  • Albumin/Creatinine
  • Measures the albumin excretion in urine to aid in the early detection of kidney disease (and increased risk of cardiovascular events) for patients with diabetes. Normal 24 hour urine albumin excretion is less than 30 mg/day in adults. 24-hour urine excretion results between 30-300 mg/day are defined as microalbuminuria (MAU) which may occur with kidney damage.
  • 1 day; 24 hours; 24HR; Alb; Chemistry; CR; Crea; Creat; DL&lt;=1 mg/L; Kidney; Left; Levo; MA; Malb; Micro albumin; Microalbumin; Nephrology; Protein.albumin; QNT; Quan; Quant; Quantitative; Ratios; Renal; Rto; UA; UCr; UR; Urn

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

Albumin/Creatinine DL <= 1.0 mg/L (24H U) [Ratio]Microalbumin/Creatinine [Ratio] in 24 hour Urine by Detection limit <= 1.0 mg/LMicroalbumin/Creat 24h Ur DL<=1mg/L-RtoAlbumin/CreatinineCHEMAlbumin/Creatinine, UrineRatio

Frequently asked questions

Code details

Code77254-1
SystemLOINC
Display nameAlbumin/Creatinine DL <= 1.0 mg/L (24H U) [Ratio]
DescriptionAlbumin/Creatinine
Short nameMicroalbumin/Creat 24h Ur DL<=1mg/L-Rto
ComponentAlbumin/Creatinine
PropertyRatio
Timing24H
System (specimen)Urine
ScaleQn
MethodDetection limit <= 1.0 mg/L
ClassCHEM
Example unitsmg/mmol creatinine
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.52
Last changed2.54

Consumer names

Albumin/Creatinine, Urine

Part names

Albumin/CreatinineRatio24HUrineQnDetection limit <= 1.0 mg/L24 hours

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.