What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 58949-9: Somatotropin 12th specimen [Mass/Vol]

Name: LOINC Code 58949-9: Somatotropin 12th specimen [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:39.276Z

58949-9 is a LOINC code used to identify Somatotropin 12th specimen [Mass/Vol] 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 Somatotropin^12th specimen. It is commonly used with the system or sample type Ser/Plas.

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 Somatotropin^12th specimen. It is commonly used with the system or sample type Ser/Plas.

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

Somatotropin [Mass/volume] in Serum or Plasma --12th specimen
Somatotropin^12th specimen
Chemistry; Endocrine; Endocrinology; GH; Growth hormone; HGH; Human growth hormone; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; Somatotropic hormone; sp12; Spec; SR; STH

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

Somatotropin 12th specimen [Mass/Vol]Somatotropin [Mass/volume] in Serum or Plasma --12th specimenGH sp12 SerPl-mCncSomatotropin^12th specimenCHEMSomatotropin specimen 12, BloodMCnc

Frequently asked questions

Code details

Code58949-9

SystemLOINC

Display nameSomatotropin 12th specimen [Mass/Vol]

DescriptionSomatotropin^12th specimen

Short nameGH sp12 SerPl-mCnc

ComponentSomatotropin^12th specimen

PropertyMCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHEM

Example unitsng/mL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.32

Last changed2.70

Consumer names

Somatotropin specimen 12, Blood

Part names

Somatotropin^12th specimenMCncPtSer/PlasQnMass ConcentrationPoint in time (spot)Serum or Plasma

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.