UMLS Hierarchy Tracer (Ancestors & Descendants)

Enter a Concept ID (CUI) to view its parent and child hierarchies. Select a preferred language for display names; **English will be used as a fallback**.

Displaying names in **English (ENG)** (with English fallback).

Target Concept: Nitrous Oxide (C0028215)

Ancestor Paths (Parents/Root)

Ancestor Path 1 (Root Source: MSH)

  1. CUI: - / Source: MSH
  2. CUI: - / Source: MSH
  3. MeSH Descriptors CUI: C1256739 / Source: MSH
  4. Topical Descriptor CUI: C1256741 / Source: MSH
  5. Chemicals and Drugs (MeSH Category) CUI: C0007995 / Source: MSH
  6. Inorganic Chemicals CUI: C0021521 / Source: MSH
  7. Nitrogen Compounds CUI: C0028159 / Source: MSH
  8. Nitrogen Oxides CUI: C0028167 / Source: MSH
  9. Nitrous Oxide (START) CUI: C0028215 / Source: MSH

Ancestor Path 2 (Root Source: MSH)

  1. CUI: - / Source: MSH
  2. CUI: - / Source: MSH
  3. MeSH Descriptors CUI: C1256739 / Source: MSH
  4. Topical Descriptor CUI: C1256741 / Source: MSH
  5. Chemicals and Drugs (MeSH Category) CUI: C0007995 / Source: MSH
  6. Inorganic Chemicals CUI: C0021521 / Source: MSH
  7. Gases CUI: C0017110 / Source: MSH
  8. Nitrogen Oxides CUI: C0028167 / Source: MSH
  9. Nitrous Oxide (START) CUI: C0028215 / Source: MSH

Ancestor Path 3 (Root Source: LIMIT)

  1. ... MAX DEPTH REACHED ... CUI: LIMIT / Source: LIMIT
  2. CUI: - / Source: MSH
  3. MeSH Descriptors CUI: C1256739 / Source: MSH
  4. Topical Descriptor CUI: C1256741 / Source: MSH
  5. Chemicals and Drugs (MeSH Category) CUI: C0007995 / Source: MSH
  6. Inorganic Chemicals CUI: C0021521 / Source: MSH
  7. Electrolytes CUI: C0013832 / Source: MSH
  8. Ions CUI: C0022023 / Source: MSH
  9. Anions CUI: C0003075 / Source: MSH
  10. Oxides CUI: C0030015 / Source: MSH
  11. Nitrogen Oxides CUI: C0028167 / Source: MSH
  12. Nitrous Oxide (START) CUI: C0028215 / Source: MSH

Ancestor Path 4 (Root Source: MSH)

  1. CUI: - / Source: MSH
  2. CUI: - / Source: MSH
  3. MeSH Descriptors CUI: C1256739 / Source: MSH
  4. Topical Descriptor CUI: C1256741 / Source: MSH
  5. Chemicals and Drugs (MeSH Category) CUI: C0007995 / Source: MSH
  6. Inorganic Chemicals CUI: C0021521 / Source: MSH
  7. Oxygen Compounds CUI: C0206758 / Source: MSH
  8. Oxides CUI: C0030015 / Source: MSH
  9. Nitrogen Oxides CUI: C0028167 / Source: MSH
  10. Nitrous Oxide (START) CUI: C0028215 / Source: MSH

Descendant Paths (Children/Leaves)

This concept appears to be a Leaf node in the available hierarchies (showing only the starting concept).

Descendant Path 1 (Top Source: MSH)

  1. Nitrous Oxide (START) CUI: C0028215 / Source: MSH

Unique Ancestor Paths Found: 4 | Unique Descendant Paths Found: 1 | Max Depth: 10 levels.