Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
Fisher scale NINDS Disease characterization
Including Alzheimer's Disease (AD)/AD-Related Dementias (ADRD) diagnosis and multiple chronic conditions (MCCs)
NIH CDEs
  • NINDS
    • Disease
      • Unruptured Cerebral Aneurysms and Subarachnoid Hemorrhage
        • Classification
          • Supplemental
        • Domain
          • Disease/Injury Related Events
            • Classification
    • Domain
      • Disease/Injury Related Events
        • Classification
    • Population
      • Adult
      • Pediatric

# Datatype
Value List

# Permissible value Value meaning name Value meaning definition
1 No blood detected No blood detected
2 Diffuse deposition of thin layer w/ all vertical layers of blood (interhemispheric fissure, insular cistern, ambient cistern) < 1 mm thick Diffuse deposition of thin layer w/ all vertical layers of blood (interhemispheric fissure, insular cistern, ambient cistern) < 1 mm thick
3 Vertical Layers of blood 1 mm thick or localized clots (clots defined as > 3 x 5 mm) Vertical Layers of blood 1 mm thick or localized clots (clots defined as > 3 x 5 mm)
4 diffuse or no subarachnoid blood, but w/ intracerebral or intraventricular clots diffuse or no subarachnoid blood, but w/ intracerebral or intraventricular clots

# Definition
Fisher scale characterizes the appearance of subarachnoid hemorrhage (SAH) on imaging

# Designation
Fisher scale

# Identifier Origin Version
kc51TSSdK0Y NLM CDEs 12-02-2025-download
FisherScale BRICS Variable Name N/A
C14246 NINDS 3