NLM Classification 2016 Edition Now Available

The NLM Classification, available online at http://www.nlm.nih.gov/class/, incorporates all additions and changes to the schedules and index from May 2015 through April 2016. The PDF version will be updated with 2016 classification data by the end of May 2016.

The QY (Clinical Pathology) and QZ (Pathology) schedules were the major area of focus for the 2016 edition.

Changes Made to the QY Schedule Name and Outline Headers

The name of the QY schedule was changed from Clinical Pathology to Clinical Laboratory Pathology

• QY 50-110 Laboratory Animals. Laboratory Techniques was changed to QY 50-60 Laboratory Animals
• QY 80-110 Laboratory Techniques was added
• QY 120-350 Diagnostic Tests was changed to QY 118-350 Specimen Analysis. Diagnostic Tests
• QY 400-490 Blood. Blood Chemistry was changed to QY 400-490 Hematologic Tests. Blood Chemical Analysis

Revisions to QY Class Number Captions and Notes for Better Scope Definition of the Number

For example:

• At QY 25, the caption was changed from Laboratory manuals. Technique to Laboratory manuals (General). The note was changed from "Classify works on specific tests by type" to "Classify works on specific tests by type. Classify laboratory manuals on specific clinical techniques with the technique."
• At QY 50, the note was changed from "Classify works on diseases of laboratory animals in SF 996.5; on vivisection as experimental surgery in WO 50; and on antivivisection in HV 4905-4959" to "Classify here works on animals used in research, testing, or teaching, including their anatomy and diseases. Classify general works on animals in QL."
• At QY 58, the note was changed from "Cf. QY 25 Laboratory manuals" to "Classify works on experimental neoplasms in QZ 206."
• At QY 110, the caption was changed from Methods in medical mycology to Mycological techniques.
• At QY 120, the caption was changed from Sputum to Sputum culture.
• At QY 160, the caption was changed from Feces to Stool analysis.
• At QY 265, the caption was changed from Agglutination, precipitation, flocculation, and complement fixation tests to Serologic tests (General).

Changes Made to the QZ Outline Headers

• QZ 40-109 Pathogenesis. Etiology was changed to QZ 40-105 Pathogenesis. Etiology
• QZ 140-190 Manifestations of Disease was changed to QZ 140-190 Pathologic Processes
• QZ 200-380 Neoplasms. Cysts was changed to QZ 200-380 Neoplasms
• QZ 310-380 Specific Types of Neoplasms was added

Revisions to QZ Class Number Captions and Notes for Better Scope Definition of the Number

For example:

• At QZ 4, the note was changed from "Classify material on comparative pathology in QZ 33" to "Classify works on both the specialty and pathologic processes here. Classify works on the specialty only in QZ 21. Classify works on pathologic processes only in QZ 140. Classify material on comparative pathology in QZ 33."
• At QZ 52, the caption was changed from Genetic testing to Genetic services.
• At QZ 140, the caption was changed from General manifestations of disease to Pathologic processes (General).
• At QZ 150, the caption was changed from Local reactions to injury and disease to Inflammation.
• At QZ 201, the note was changed from "Classify here popular works on all aspects of neoplasms" to "Classify here popular works on neoplasms in general. Classify popular works on neoplasms by site in the appropriate schedule."
• At QZ 206, the caption was changed from Research (General) to Research (General). Experimental neoplasms. The note was changed from "Classify works on specific topics by subject, e.g., on experimental work on the etiology of neoplasms in QZ 202" to "Classify here all works on experimental neoplasms regardless of type or site."

Changes to Other Class Schedules

For example:

• At QS 26, the note was changed from "Classify catalogs here" to "Classify catalogs here. Classify here all works on physical anatomic models even if used for educational purposes. Classify digital anatomic models in QS 26.5. Classify works on use of anatomic models for special subjects by subject."
• At WC 160, the note was added: "Classify works on syphilis serodiagnosis in QY 275."
• At WH 250, the note was deleted: "Classify works on histology and pathology of leukemia in QZ 350."
• At WI 950, the note was added: "Classify works on hernias in general in QZ 140."
• Surveys was added to the caption of form number 16 in most schedules.
• The form number for individual museums and exhibitions in each schedule now allows for Table G breakdown. No additional numbers for "Not Table G" were added. Form number 1 for societies and organizations now allows for Table G breakdown. No additional numbers for "Not Table G" were added.
• NOTE: The MeSH trees for Mental Disorders (F03) underwent major changes in 2016. The class numbers and corresponding index terms will be reevaluated with the 2017 edition of the NLM Classification.

Class Numbers Added and Canceled

Fifty-eight (58) new class numbers were added. Eight (8) class numbers were canceled. The form numbers for Tables. Statistics. Surveys in the schedules now permit use of Table G to allow geographic breakdowns, so new numbers for "Not Table G" were added to many of the schedules.

Class Numbers Added —2016

New Number	Class Name	Former Number(s)
QS 16.1	[Human Anatomy--Tables. Statistics. Surveys] General coverage (Not Table G)	QS 16
QS 516.1	[Histology--Tables. Statistics. Surveys] General coverage (Not Table G)	QS 516
QS 616.1	[Embryology--Tables. Statistics. Surveys] General coverage (Not Table G)	QS 616
QT 16.1	[Physiology--Tables. Statistics. Surveys] General coverage (Not Table G)	QT 16
QT 110	Regeneration (General or not elsewhere classified)	Various places
QU 16.1	[Biochemistry. Cell Biology and Genetics--Tables. Statistics. Surveys] General coverage (Not Table G)	QU 16
QU 19	Schools, departments, and faculties of biochemistry, cell biology, or genetics (Table G)	None
QU 19.1	[Schools, departments, and faculties of biochemistry, cell biology, or genetics ] General coverage (Not Table G)	None
QV 16.1	[Pharmacology--Tables. Weights and measures. Statistics. Surveys] General coverage (Not Table G)	QV 16
QW 16.1	[Microbiology--Tables. Statistics. Surveys] General coverage (Not Table G)	QW 16
QW 516.1	[Immunology--Tables. Statistics. Surveys] General coverage (Not Table G)	QW 516
QW 525.5.L9	Lymphocyte activation	None
QX 16.1	[Parasitology--Tables. Statistics. Surveys] General coverage (Not Table G)	QX 16
QY 16.1	[Clinical Laboratory Pathology--Tables. Statistics. Surveys] General coverage (Not Table G)	QY 16
QY 80	Clinical laboratory techniques (General)	QY 25
QY 102	Molecular diagnostic techniques (General)	Various places
QY 118	Specimen handling (General)	QY 25
QZ 16.1	[Pathology--Tables. Statistics. Surveys] General coverage (Not Table G)	QZ 16
QZ 203	Neoplastic processes	QZ 202
QZ 210	[Neoplasms] Genetic aspects	QZ 200
QZ 250	[Neoplasms] Prevention and control	QZ 200
QZ 270	Combined modality therapy	Various places
QZ 360	Melanoma (General or not elsewhere classified)	QZ 200
W 16.1	[General Medicine. Health Professions--Tables. Statistics] General coverage (Not Table G)	W 16
W 616.1	[Forensic Sciences--Tables. Statistics. Surveys] General coverage (Not Table G)	W 616
WA 16.1	[Public Health--Tables. Statistics. Surveys] General coverage (Not Table G)	WA 16
WB 16.1	[Practice of Medicine--Tables. Statistics. Surveys] General coverage (Not Table G)	WB 16
WB 320.5	Rehabilitation research	None
WB 395	Sex reassignment procedures	None
WC 16.1	[Communicable Diseases--Tables. Statistics. Surveys] General coverage (Not Table G)	WC 16
WE 16.1	[Musculoskeletal System--Tables. Statistics. Surveys] General coverage (Not Table G)	WE 16
WF 16.1	[Respiratory System--Tables. Statistics. Surveys] General coverage (Not Table G)	WF 16
WG 16.1	[Cardiovascular System--Tables. Statistics. Surveys] General coverage (Not Table G)	WG 16
WH 16.1	[Hemic and Lymphatic Systems--Tables. Statistics. Surveys] General coverage (Not Table G)	WH 16
WI 16.1	[Digestive System--Tables. Statistics. Surveys] General coverage (Not Table G)	WI 16
WJ 16.1	[Urogenital System--Tables. Statistics. Surveys] General coverage (Not Table G)	WJ 16
WK 16.1	[Endocrine System--Tables. Statistics. Surveys] General coverage (Not Table G)	WK 16
WK 145	[Endocrine Gland] Neoplasms (General or not elsewhere classified)	WK 140
WL 16.1	[Nervous System--Tables. Statistics. Surveys] General coverage (Not Table G)	WL 16
WL 103.4	Cognitive neuroscience	None
WM 16.1	[Psychiatry--Tables. Statistics. Surveys] General coverage (Not Table G)	WM 16
WN 16.1	[Radiology. Diagnostic Imaging--Tables. Statistics. Surveys] General coverage (Not Table G)	WN 16
WO 16.1	[Surgery--Tables. Statistics. Case reports (General). Surveys] General coverage (Not Table G)	WO 16
WO 620	Sex reassignment surgery	None
WP 16.1	[Gynecology--Tables. Statistics. Surveys] General coverage (Not Table G)	WP 16
WQ 16.1	[Obstetrics--Tables. Statistics. Surveys] General coverage (Not Table G)	WQ 16
WQ 90	Reproductive health surveys	None
WQ 90.1	[Reproductive health surveys] General coverage (Not Table G)	None
WQ 105	Maternal health	WA 310
WR 16.1	[Dermatology--Tables. Statistics. Surveys] General coverage (Not Table G)	WR 16
WS 16.1	[Pediatrics--Growth tables. Statistics. Surveys] General coverage (Not Table G)	WS 16
WS 105.5.M8	[Normal mental growth and development. Child psychology] Music	None
WT 16.1	[Geriatrics. Chronic Disease--Tables. Statistics. Surveys] General coverage (Not Table G)	WT 16
WU 16.1	[Dentistry. Oral Surgery--Tables. Statistics] General coverage (Not Table G)	WU 16
WV 16.1	[Otolaryngology--Tables. Statistics. Surveys] General coverage (Not Table G)	WV 16
WW 16.1	[Ophthalmology--Tables. Statistics. Surveys] General coverage (Not Table G)	WW 16
WX 16.1	[Hospitals and Other Health Facilities--Tables. Statistics. Surveys] General coverage (Not Table G)	WX 16
WY 31.1	[Nursing--Tables. Statistics. Surveys] General coverage (Not Table G)	WY 31

The bracketed information is supplied for clarification to show the classification schedule and topic to which the class number pertains. The bracketed information is not supplied in the online database.

 

Class Numbers Canceled—2016

New Number	Class Name	Former Number(s)
QW 164	Vertebrate viruses	QW 160
QW 169	Vertebrate viruses, unclassified	QW 160
QY 35	Molding and casting of anatomic models. Moulages	QS 26; QS 26.5
QY 143	Bile pigments	QY 140
QY 147	Function tests	QY 140
QZ 109	Vitamin deficiencies	QZ 105
QZ 190	Local disorders of growth	n/a
QZ 350	Leukemia. Lymphoma. Hematologic neoplasms	WH 250; WH 525

All index entries pertaining to the aforementioned schedule additions and changes were modified.

Changes to Table G (Geographic Notations)

A systematic review was conducted of the Table G (Geographic Notations). As a result:

Changes to the Main Section:

Additions:

• GK6—Kosovo
• HS07—Sao Tome and Principe
• HS7—South Sudan

Revisions:

• DS2—Salvador changed to El Salvador
• FG9—Guernsey changed to Channel Islands
• HC4—Cape Verde Islands changed to Cabo Verde
• LE1—East Timor changed to Timor-Leste
• PA6—Antarctic changed to Antarctic Regions
• PA7—Arctic changed to Arctic Regions
  
  Some cross references were added, e.g., Mekong Valley see Southeastern Asia. Several cross references were deleted because they were duplicative of MeSH cross references, e.g, Basutoland see Lesotho.

Additions to the Historical Geographic Locations section:

• GG4—East Germany
• GG4—West Germany
• JB9—Byzantium
• JI7—Persia
• JM4—Mesopotamia
• LP2—New Guinea
• JP2—Palestine (formerly in the Middle East and Asia section)

Additions to the Obsolete Table G Notations section:

• DG1—Greenland
• HA7—African Atlantic Islands
• HA71—Ascension
• HA72—St. Helena
• HA73—Tristan de Cunha
• HS8—South West Africa

The Table G Practices information has been extensively revised.

Additions and Changes to the Index

Additions:
One hundred and forty-two (142) new index entries were created of which forty-four (44) are from the 2016 MeSH; the remainder are MeSH terms from previous years. All main index headings are now linked to the 2016 vocabulary in the MeSH Browser.

Class numbers are included for one-to-one matches only.

1. Absorptiometry, Photon
2. Adenomyoma
3. Adolescent Health -- WS 460
4. alpha 1-Antitrypsin Deficiency
5. Angiogenesis Inhibitors
6. Animals, Exotic -- SF 997.5.E95
7. Antigens, Plant -- QW 573
8. Ape Diseases -- SF 997.5.A63
9. Arthrocentesis -- WE 312
10. Beloniformes
11. Callitrichinae
12. Carcinoma in Situ -- QZ 365
13. Carcinoma, Basal Cell -- WR 500
14. Carcinoma, Ductal, Breast -- WP 870
15. Carcinoma, Ehrlich Tumor -- QZ 206
16. Carcinoma, Intraductal, Noninfiltrating -- WP 870
17. Carcinoma, Non-Small-Cell Lung -- WF 658
18. Carcinoma, Small Cell -- QZ 365
19. Carcinoma, Squamous Cell -- QZ 365
20. Cebidae
21. Cervical Intraepithelial Neoplasia -- WP 480
22. Chemoradiotherapy -- QZ 270
23. Chemotherapy, Adjuvant -- QZ 270
24. Child Health -- WS 440
25. Cholangiocarcinoma -- WI 765
26. Cholesteatoma, Middle Ear -- WV 230
27. Chondrosarcoma -- QZ 345
28. Chromatography, Ion Exchange
29. Chromatography, Liquid
30. Clinical Decision-Making -- WB 141
31. Clinical Studies as Topic -- W 20.55.C5
32. Cognitive Aging -- WT 145
33. Cognitive Neuroscience -- WL 103.4
34. Cold Injury -- WD 670
35. Compassion Fatigue -- WA 495
36. Conjunctival Neoplasms -- WW 212
37. Cord Blood Stem Cell Transplantation -- WH 140
38. Cosmeceuticals -- QV 60
39. Criminal Behavior
40. Crystallography, X-Ray
41. Culture Techniques -- QS 525
42. Deer
43. Diet, Protein-Restricted -- WB 426
44. DNA, Plant -- QK 898.D44
45. Electrophoresis, Microchip -- QU 25
46. Electrophoresis, Polyacrylamide Gel
47. Environmental Psychology -- BF 353
48. Eyelid Neoplasms -- WW 205
49. Facial Recognition
50. Femoral Neoplasms -- WE 865
51. Fetal Blood -- WQ 210
52. Fibrin Fibrinogen Degradation Products
53. Fluorescence Resonance Energy Transfer -- QY 90
54. Food, Organic
55. Foreign-Body Reaction -- QZ 150
56. Fundoplication -- WI 250
57. Gastrostomy -- WI 380
58. Genes, Dominant -- QU 470
59. Genes, Recessive -- QU 470
60. Genes, Retinoblastoma -- QZ 210
61. Gorilla gorilla -- QL 737.P94
62. Grandparents
63. Graphic Novels
64. Health Equity -- W 76
65. Hereditary Breast and Ovarian Cancer Syndrome -- WP 870
66. HIV Long-Term Survivors -- WC 503.7
67. Hypovolemia
68. Infant Health -- WS 410-430
69. Intimate Partner Violence
70. Leukemia, Experimental -- QZ 206
71. Libraries, Special -- Z 675.A2
72. Luminescent Measurements -- TP 248.25.L85
73. Lymphoma, AIDS-Related -- WH 525
74. Machine Learning
75. Malignant Hyperthermia -- WO 245
76. Mammary Neoplasms, Animal
77. Maternal Health -- WQ 105
78. Medical-Surgical Nursing -- WY 150
79. Metacognition -- BF 311
80. Microarray Analysis
81. Military Family -- UB 403
82. Miners
83. Molecular Imprinting -- QT 37.5.P7
84. Multiple Endocrine Neoplasia -- WK 145
85. Mustelidae -- QL 737.C25
86. Neoplasms, Complex and Mixed -- QZ 310
87. Neoplasms, Connective and Soft Tissue -- QZ 340
88. Neoplasms, Plasma Cell -- WH 540
89. Neoplastic Syndromes, Hereditary -- QZ 210
90. Nerve Agents -- QV 663
91. Neuroendocrine Tumors -- QZ 310
92. Neurological Rehabilitation -- WL 140
93. Neuropathology -- WL 21
94. Neuroprotection -- WL 102
95. Nucleotide Mapping -- QU 25
96. Origin of Life -- QH 325
97. Oropharyngeal Neoplasms -- WV 410
98. Paranasal Sinus Neoplasms -- WV 340
99. Passeriformes -- QL 696.P2-.P298
100. Patch-Clamp Techniques -- QY 95
101. Personal Protective Equipment
102. Pharyngeal Neoplasms -- WV 410
103. Plant Breeding -- SB 123-123.5
104. Plasmacytoma -- WH 540
105. Point-of-Care Testing
106. Precipitin Tests -- QY 265
107. Primate Diseases -- SF 997.5.P7
108. Problem Behavior
109. Protein Array Analysis -- QU 25
110. Psychiatric Rehabilitation -- WM 30
111. Quantitative Trait, Heritable -- QU 475
112. Radiation Exposure
113. Radioimmunotherapy -- QZ 270
114. Radiotherapy, Adjuvant -- QZ 270
115. Ranidae -- QL 668.E27
116. Raw Foods -- WB 432
117. Rehabilitation Research -- WB 320.5
118. RNA, Plant -- QK 981
119. Sarcoma, Experimental -- QZ 206
120. Semen Analysis -- QY 190
121. Sex Reassignment Procedures -- WB 395
122. Sex Reassignment Surgery -- WO 620
123. Sheep, Domestic -- SF 371-379
124. Sleep Medicine Specialty -- WB 115
125. Small Cell Lung Carcinoma -- WF 658
126. Social Workers -- W 21
127. Surface Plasmon Resonance -- QT 36.4
128. Systemic Inflammatory Response Syndrome -- QZ 150
129. Teas, Medicinal -- WB 438
130. Telerehabilitation -- WB 320
131. Theory of Mind -- BF 441
132. Thoracentesis -- WF 980
133. Tissue Array Analysis -- QS 525
134. Transitional Care -- W 84.7
135. Urethral Neoplasms -- WJ 504
136. Ursidae -- QL 737.C27
137. Waterborne Diseases
138. X-Ray Diffraction
139. Yang Deficiency
140. Yin Deficiency
141. Zika Virus -- QW 168.5.F5
142. Zika Virus Infection -- WC 524

Modifications:
Numerous main index entries and cross references were modified to reflect changes in the MeSH vocabulary.

For example:

• Black Pepper was deleted as a main heading and made a cross reference to Piper nigrum.
• Day Care was changed to Day Care, Medical.
• Delirium, Dementia, Amnestic, Cognitive Disorders was changed to Neurocognitive Disorders.
• Origin of Life, formerly a cross reference to Biogenesis, is now a main index heading.

Deletions:

• Seventy-eight (78) index entries were deleted.

To learn more about the NLM Classification see the Fact Sheet.