Spatial Concept
prone Audio
prone [ prohn ]
Subclass of:
Body position
Definitions related to prone position:
  • (prone) Lying with the front or ventral surface downward; lying face down. Deprecation Comment:This concept has been deprecated because it does not describe a type of Act (as it should in the ActClass code system), but rather encodes the result or value of an observation. The same code has been added to the ObservationValue code system.
    NCI Health Level 7 Vocabulary
    U.S. National Cancer Institute, 2018
  • An anterior recumbent body position whereby the person lies on its stomach and faces downward.
    NCI
    U.S. National Cancer Institute, 2021
  • The posture of an individual lying face down.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.