LOINCActiveObservation

LOINC Code 1369-8: Ascorbate post dose PO (24H U) [Mass/Time]

1369-8 is a LOINC code used to identify Ascorbate post dose PO (24H U) [Mass/Time] 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 Ascorbate^post dose PO. 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 Ascorbate^post dose PO. 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: Observation

What it does not mean

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

Key facts

  • Ascorbate [Mass/time] in 24 hour Urine --post dose PO
  • Ascorbate^post dose PO
  • 1 day; 24 hours; 24HR; After; Ascorbic acid; c702; CHEMISTRY.CHALLENGE TESTING; Mass Rate; mRate; p dose; p PO; PST; QNT; Quan; Quant; Quantitative; UA; UR; Urn; Vit C; Vitamin C

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

Ascorbate post dose PO (24H U) [Mass/Time]Ascorbate [Mass/time] in 24 hour Urine --post dose POVit C p PO 24h Ur-mRateAscorbate^post dose POCHALAscorbate after dose by mouth, UrineMRat

Frequently asked questions

Code details

Code1369-8
SystemLOINC
Display nameAscorbate post dose PO (24H U) [Mass/Time]
DescriptionAscorbate^post dose PO
Short nameVit C p PO 24h Ur-mRate
ComponentAscorbate^post dose PO
PropertyMRat
Timing24H
System (specimen)Urine
ScaleQn
ClassCHAL
Example unitsmg/24 H
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.42

Consumer names

Ascorbate after dose by mouth, Urine

Part names

Ascorbate^post dose POMRat24HUrineQnMass Rate24 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.

LOINC Code 1369-8 | HealthAssure