Where D-dimer is reported
Also listed as: Fibrin degradation product
| Condition | Direction | Compared against | Associated symptoms | Source |
|---|---|---|---|---|
| Atrial Fibrillation | ↑ elevated | AF vs healthy/non-AF | — | Rafaqat et al. 2024 |
| Long COVID | ↑ elevated | healthy controls, recovered individuals without persistent symptoms | Coagulopathy, thrombotic risk | Lai et al. 2023; Thomas et al. 2024 |
Frequently asked questions
In which conditions is D-dimer altered?
In the OSMF atlas D-dimer is reported in Atrial Fibrillation, Long COVID. It is elevated in 2 across 2 entries.
Does D-dimer point to one specific diagnosis?
No. Because D-dimer changes in several conditions (Atrial Fibrillation, Long COVID), an abnormal result cannot identify which condition, if any, is present. It must be interpreted with symptoms, history and other tests.
What is the LOINC code for D-dimer?
Entries in this atlas use LOINC 48065-7. LOINC codes identify the laboratory observation so results can be compared across systems.
Is one abnormal D-dimer result diagnostic?
No single biomarker result is diagnostic of any of these conditions. Findings reflect group averages from published cohorts with substantial overlap between patients and controls.
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Last reviewed: 2026-07-03 · Browse: Biomarker Index · All marker pages · Biomarker Atlas
Disclaimer: Educational synthesis of peer-reviewed research; not medical advice. Findings are group-level and vary with study design. Discuss any result with a qualified clinician.