NLM Classification 2006 Edition Now Available
![](https://webarchive.library.unt.edu/eot2008/20081011015558im_/http://www.nlm.nih.gov/pubs/techbull/new_tb_graphics/t.gif)
t he NLM Classification, available online at http://wwwcf.nlm.nih.gov/class/, incorporates all additions and changes to the schedules and index from April 2005 through March 2006. This edition includes an online tutorial on searching the NLM Classification.
Major Changes
Proteins and bacteria were the major areas revised for the 2006 edition.
- The general class number for proteins, QU 55, was subdivided in order to parallel the arrangement of the MeSH thesaurus and better fit trends in the literature. NLM believes these new numbers for categories of proteins provide a more coherent shelf arrangement of works in this broad topic area and better control the volume of material formerly assigned to this single class number.
- Several class numbers in the bacteria section of the QW schedule were added, modified, or canceled to better reflect the current taxonomy in Bergey's Manual of Systematic Bacteriology, 2nd ed. However, because a major overhaul of this section of the schedule would have been impractical, the extent of the revision for bacteria was necessarily limited.
- New class numbers were added and existing class numbers were canceled as needed to reflect other changes in MeSH and the biomedical and related sciences literature cataloged.
Class Numbers Added and Canceled
Class Numbers Added - 2006
New Number |
Class Name |
Former Number |
QT Physiology |
||
QT 36.5 | Nanotechnology | QT 36 |
QU Biochemistry |
||
QU 55.2 | Carrier proteins. Intracellular signaling peptides and proteins | QU 55 |
QU 55.3 | Cytoskeletal proteins. Scleroproteins | QU 55 |
QU 55.4 | Dietary proteins | QU 55 |
QU 55.5 | Glycoproteins | QU 55 |
QU 55.6 | Heat-shock proteins. Molecular chaperones | QU 55 |
QU 55.7 | Membrane proteins. Cell surface receptors | QU 55 |
QU 55.8 | Metalloproteins | QU 55 |
QU 55.9 | Protein phenomena | QU 55 |
QW Microbiology. Immunology |
||
QW 90 | Biofilms | Various numbers |
QW 125.5.B4 | Bifidobacterium | QW 125.5.A2 |
QW 125.5.B7 | Brevibacterium | QW 118 |
QW 125.5.C5 | Corynebacterium | QW 118 |
QW 125.5.P7 | Propionibacteriaceae | QW 120 |
WB Practice of Medicine |
||
WB 112 | Osteopathic medicine | WB 940 |
Class Numbers Canceled - 2006
[Editor's note: A correction was made to "New Number" for Actinobacteria. The corrected number is QW 125.]
Canceled Number |
Class Name |
New Number |
QV 115 | Synthetic local anesthetics | QV 113 |
QW 115 | Actinobacteria | QW 125 |
QW 118 | Corynebacterium | QW 125.5.C5 |
QW 120 | Propionibacteriaceae | QW 125.5.P7 |
QW 153 | Sheathed bacteria. Budding or appendaged bacteria | QW 133 |
Other Changes to the Schedule
- Selected class number captions were augmented to clarify their scope, e.g., at QW 50, the caption was changed to Bacteria (General). Bacteriology. Archaea.
- Selected schedule captions were revised to reflect changes in MeSH, e.g., at QV 55, Drugs was changed to Pharmaceutical preparations.
- Various instructional notes were added or modified to clarify classification practices, e.g., at the beginning of the WY schedule, an example was added to the second note to clarify classification of works on nursing care of a specific disease.
New Table G Numbers
The following Table G numbers were added to the outline of geographic tables used in the NLM Classification. (see http://www.nlm.nih.gov/class/TableGOutline.html)
GA3-Eastern EuropeGB2-Baltic States1
Changes to the Index
- Ninety-eight (98) new main index entries were created, fifty-seven (57) of which are from the 2006 MeSH; the remainder are MeSH terms from previous years.
-
Numerous main index entries and cross references were modified to reflect changes in the MeSH vocabulary. In particular, major categories of index terms affected by MeSH changes include:
Terms changed to clarify meaning for use in non-medical databases, e.g.:
Fractures to Fractures, Bone
Labor Complications to Obstetric Labor Complications
Terms replaced by more current or scientific terms, e.g.:
Hay Fever to Rhinitis, Allergic, Seasonal
Clams to Bivalvia
- Various instructional notes were added to index entries to clarify classification practices. For example, to more fully account for their medically relevant facets, improved classification guidance has been added to the index for certain headings in the areas of nursing, history (wars and events), pharmacology, and the digestive system (liver and biliary tract).
- All index entries pertaining to the aforementioned schedule additions and changes were modified.
To learn more about the NLM Classification see the Fact Sheet.
1 See New Table G Classification Number Added to the NLM Classification in the 2005 May-Jun; (344)NLM Technical Bulletin.
![](https://webarchive.library.unt.edu/eot2008/20081011015558im_/http://www.nlm.nih.gov/pubs/techbull/new_tb_graphics/black_pixel.gif)
Willis SR, DeAnna P. NLM Classification 2006 Edition Now Available. NLM Tech Bull. 2006 Mar-Apr;(349):e6.