LOINC Code 75558-7: Trisomy 18 risk Dosage of chromosome-specific cfDNA Ql (Plasma cell-free+WBC DNA) [Interp]
75558-7 is a LOINC code used to identify Trisomy 18 risk Dosage of chromosome-specific cfDNA Ql (Plasma cell-free+WBC DNA) [Interp] 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 Fetal trisomy 18 risk. It is commonly used with the system or sample type WBC.DNA+Plas.cfDNA.
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 Fetal trisomy 18 risk. It is commonly used with the system or sample type WBC.DNA+Plas.cfDNA.
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: Dosage of chromosome specific cf DNA
What it does not mean
- The code identifies the observation or test, not the actual result.
Key facts
- Fetal Trisomy 18 risk [Interpretation] based on Plasma cell-free+WBC DNA by Dosage of chromosome-specific cfDNA Qualitative
- Fetal trisomy 18 risk
- This term was developed for, but is not limited in use to, Natera's Panorama noninvasive prenatal test for fetal aneuploidies and microdeletions.
- Chromosom; Chromosomes; Edward syndrome; Genetics; Heredity; Heritable; Impression; Impression/interpretation of study; Impressions; Inherited; Interp; Interpretation; Leukocytes; Molecular pathology; MOLPATH; MOLPATH.TRISOMY; Ordinal; Pl; Plasma; Plsm; Point in time; QL; Qual; Qualitative; Random; Screen; Spec; T18 risk; Ts; Ts 18 risk; WBC.DNA+cfDNA; WBCs; White blood cells
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
Frequently asked questions
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.