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Table of Contents: 2018 JULY–AUGUST No. 423

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NLM Classification 2018 Summer Edition Now Available

Willis SR. NLM Classification 2018 Summer Edition Now Available. NLM Tech Bull. 2018 Jul-Aug;(423):e4.

2018 August 23 [posted]

The 2018 summer version of the NLM Classification, now available, encompasses the systematic review of selected schedules and other miscellaneous updates.

Summary Statistics for the 2018 Summer Edition

Ninety-nine (99) new class numbers were added. Nine (9) class numbers were canceled.

Class Numbers Added —2018 Summer Edition
New Number Class Name Former Number(s)
QS 523.1[Tissue banks] General coverage (Not Table G)QS 523
QS 632[Embryology] Laws (Table G)None
QS 632.1[Embryology] General coverage (Not Table G)None
QS 633[Embryology] Discussion of law (Table G)None
QS 633.1[Embryology] General coverage (Not Table G)None
QU 24.5Biological specimen banks (Table G)QU 23-24
QU 24.51[Biological specimen banks] General coverage (Not Table G)QU 23-24
QU 240[Nutrition. Vitamins] Popular worksNone
QZ 185Chronic diseaseWT 500
W 86Health care fraud. Health services misuseW 84-84.8
WA 356Elder abuseWT 30
WA 487.5.S5SingersNone
WB 102.7Precision medicineNone
WC 503.8[Acquired Immunodeficiency Syndrome. HIV Infections] Popular worksNone
WE 24.5Bone banks (Table G)None
WE 24.51[Bone banks] General coverage (Not Table G)None
WG 21.5[Cardiology] Allied health personnel. Allied health occupationsNone
WH 24.5Blood banks (Table G)WH 23-24
WH 24.51[Blood banks] General coverage (Not Table G)WH 23-24
WI 212Taste. Taste buds. Taste perceptionWI 210
WJ 24.5Sperm banks (Table G)WJ 23-24
WJ 24.51[Sperm banks] General coverage (Not Table G)WJ 23-24
WM 21.5[Psychiatry] Allied health personnel. Allied health occupationsNone
WN 21.5[Radiology. Diagnostic Imaging] Allied health personnel. Allied health occupationsNone
WO 21.5[Surgery] Allied health personnel. Allied health occupationsNone
WS 80[Pediatrics] Popular works (General)None
WS 105.5.P8[Child psychology] Psychological stressWS 350
WS 105.5.S5Sibling relationsWS 105.5.F2
WS 105.5.T4[Child psychology] Technology and communications mediaNone
WS 106Exceptional child (General)WS 105.5.C3
WS 106.2Gifted childWS 350
WS 106.4Physically disabled childWS 105.5.H2
WS 114Infant careWS 113
WS 132[Nutrition] In adolescenceWS 115
WS 265[Pediatrics] Skin and connective tissue diseasesWS 260
WS 275[Pediatrics] Musculoskeletal diseasesWS 270
WS 285[Pediatrics] Respiratory tract diseasesWS 280
WS 295[Pediatrics] Cardiovascular diseasesWS 290
WS 305[Pediatrics] Hemic and lymphatic diseases. Immune system diseasesWS 300
WS 311[Pediatrics] Digestive system diseasesWS 310
WS 321[Pediatrics] Urogenital diseases. Urologic diseasesWS 320-322
WS 335[Pediatrics] Endocrine system diseasesWS 330
WS 340.5[Pediatrics] Nervous system diseasesWS 340
WS 341[Pediatrics] Brain diseases. Brain injuriesWS 340
WS 350.3[Child psychiatry] Behavior therapyWS 350.6
WS 350.33[Child psychiatry] Drug therapyWS 350.2
WS 350.55[Child psychiatry] Socioenvironmental therapyWM 428-445
WS 350.7[Pediatrics] Neurodevelopmental disordersWS 350.6
WS 350.8.A2[Child psychiatry] AbuseWS 350
WS 367[Pediatrics] Drug therapyWS 366
WS 370[Pediatrics] Occupational therapyWS 368
WS 462.5[Adolescent psychology. Adolescent behavior] Special topics, A-ZNone
WS 462.5.A8[Adolescent psychology] Attitudes and adjustments to life change events (death, illness, divorce, etc.)WS 462
WS 462.5.C7[Adolescent psychology] Cognition. Fantasy. ImaginationWS 462
WS 462.5.C8[Adolescent psychology] Communication. Verbal behaviorWS 462
WS 462.5.D2[Adolescent psychology] Decision makingWS 462
WS 462.5.D3[Adolescent psychology] DeprivationWS 462
WS 462.5.D8[Adolescent psychology] DreamsNone
WS 462.5.E5[Adolescent psychology] EmotionsWS 462
WS 462.5.E8[Adolescent psychology] Evaluation of psychological development (General)WS 462
WS 462.5.E9[Adolescent psychology] Environmental and sociological factorsWS 462
WS 462.5.F2[Adolescent psychology] Family relationsNone
WS 462.5.I5[Adolescent psychology] Interpersonal relationsWS 462
WS 462.5.M2[Adolescent psychology] MemoryNone
WS 462.5.M3[Adolescent psychology] Mental healthWS 462
WS 462.5.M4[Adolescent psychology] MoralsWS 462
WS 462.5.M5[Adolescent psychology] MotivationWS 462
WS 462.5.M8[Adolescent psychology] MusicNone
WS 462.5.P3[Adolescent] psychology Personality developmentWS 462
WS 462.5.P7[Adolescent psychology] Pregnancy. Reproductive behaviorWS 462
WS 462.5.P8[Adolescent psychology] Psychological stressNone
WS 462.5.S3[Adolescent psychology] SelfNone
WS 462.5.S4[Adolescent psychology] Sexual behaviorWS 462
WS 462.5.S5[Adolescent psychology] Sibling relationsWS 105.5.F2
WS 462.5.S6[Adolescent psychology] Social behaviorWS 462
WS 462.5.T4[Adolescent psychology] Technology and communications mediaNone
WS 464[Adolescent psychiatry] TherapyWS 463
WS 465[Adolescent psychiatry] Behavior therapyWS 463
WS 466[Adolescent psychiatry] PsychotherapyWS 463
WS 467[Adolescent psychiatry] Socioenvironmental therapyNone
WS 470.A-ZSpecial topics in adolescent psychiatryNone
WS 470.A2[Adolescent psychiatry] AbuseNone
WS 470.A4[Adolescent psychiatry] Aggression. Violence. Dangerous behavior. Self- injurious behaviorWS 463
WS 470.D3[Adolescent psychiatry] Defense mechanismsNone
WS 470.I4[Adolescent psychiatry] InhibitionNone
WS 470.P3[Adolescent psychiatry] Personality disorders`WS 463
WS 470.R9[Adolescent psychiatry] Runaway behaviorWS 463
WS 470.S6[Adolescent psychiatry] Social behavior disordersWS 463
WT 30.1[Aged. Socioeconomic factors] General coverage (Not Table G)WT 30
WT 31.5MedicareWT 31
WT 101Aged. Health status. Life style (General or not elsewhere classified)Various places
WT 152[Aged] PsychotherapyWT 150
WT 156[Dementia. Alzheimer disease] DiagnosisWT 155
WT 157[Dementia. Alzheimer disease] TherapyWT 155
WT 158[Dementia. Alzheimer disease] EtiologyWT 155
WT 159[Dementia. Alzheimer disease] EtiologyWT 155
WT 160[Dementia. Alzheimer disease] Prevention and controlWT 155
WT 161[Dementia. Alzheimer disease] Psychosocial aspectsWT 155
WV 302Olfactory perception. SmellWV 301


Class Numbers Canceled—2018 Summer Edition
Canceled Number Class Name Now Classed in
WI 113 [Digestive System] Popular works With topic
WO 75 [Surgery] Popular works (General) With topic
WS 105.5.H2 Disabled child (Psychological problems) WS 106-107
WS 107.5.B4 Biochemistry. Genetics WS 107
WS 107.5.F6 Foster home care WS 105.5.A8
WS 107.5.I4 Institutionalization WS 105.5.H7
WS 350.8.D2 Deception WS 105.5.S6
WS 350.8.I3 Identity Crisis WS 350.8.P3
WS 360 Pediatric gynecology (General) WS 320-321

Numerous class number captions or notes and schedule headers were modified.

Twenty-six (26) index main headings were added; seven (7) index headings were deleted; and 526 index entries were modified.

Systematic Reviews for the 2018 Summer Edition

The major focus of the 2018 summer version was the systematic review of the following schedules: WS (Pediatrics) and WT (Geriatrics. Chronic Disease).

Highlights from the WS (Pediatrics) Review

  • The bulk of the 2018 summer edition changes were from the WS (Pediatrics) systematic review:
    • Sixty-two (62) new class numbers added
    • Forty-five (45) schedule captions, notes, and headers modified
    • Seven (7) class numbers canceled
    • Fifteen (15) new terms added to Classification index
    • 433 existing index terms modified
    • Six (6) index terms deleted
  • Pediatrics as a specialty moved from WS 100 to WS 21. WS 100 is for works on both the specialty and pediatric diseases in general
  • WS 103-105 Growth and Development area
    • The index term Growth and Development no longer points to WS 103 Normal physical growth and development. Growth and Development in general is classed in QH 491 with the development of organisms; catalogers should use the specific MeSH terms, Child Development, Adolescent Development, or Human Development.
    • WS 105 Normal mental growth and development. Child psychology A-Z area - Several changes were made. For example:
      • WS 105.5.E9 External influences (literature, motion pictures, television, war, etc.) – The caption was broadened to Environmental and sociological factors. New number was created: WS 105.5.T4 Technology and communications media
      • WS 105.5.F2 Family relations. Birth order. Only child. Twins. Parent-child relations. Father-child relations. Mother-child relations. Sibling relations, etc. - Sibling relations and related topics were moved to a new number, WS 105.5.S5 Sibling relations; Parenting was moved to WS 105.5.C3 Child rearing; the caption was shortened
  • WS 106-110 Exceptional Child area – New area created for exceptional children and adolescents including physical and intellectual aspects. Terminology was updated from "mentally disabled" to "intellectually disabled"
  • WS 113-141 Child Care. Nutrition. Physical Examination area
    • Physical Examination was removed from the section header and the end range adjusted. A new section header was created:
      WS 135-141 Immunization. Physical Examination to better reflect numbers falling in that section
    • New numbers were created:
      • WS 114 Infant care
      • WS 132 [Nutrition] In adolescence
  • WS 200-342 Diseases of Children and Adolescents area
    • Ten (10) new class numbers were created for disease terms that were split from the system. For example, Musculoskeletal Diseases was moved from WS 270 Musculoskeletal system to the new number, WS 275 Musculoskeletal diseases
    • Using the top two layers of MeSH trees for guidance, more organs and general disease terms in the NLM Classification index now point to this WS area for children and adolescents. For example, Respiratory System, which is at the top of the A04 MeSH tree, is classed in WS 280. WS 280 was added to the first level index terms treeing under Respiratory System, e.g., Pharynx.
  • WS 350-350.8 Child Psychiatry area
    • Three (3) new numbers were created for specific therapies:
      • WS 350.3 Behavior therapy
      • WS 350.33 Drug therapy [of mental disorders]
      • WS 350.55 Socioenvironmental therapy
    • The caption for WS 350.6 Behavior disorders. Development disorders. Neurotic disorders (General) was changed to Child mental disorders. Behavioral symptoms (General) to parallel the caption at WM 140. A new subordinate number was created: WS 350.7 Neurodevelopmental disorders
    • Two (2) class numbers were canceled, and the concepts reassigned to more appropriate numbers:
      • WS 350.8.D2 Deception
      • WS 350.8.I3 Identity crisis
    • A new number was created for the psychological effect of abuse on the child WS 350.8.A2 Abuse
  • WS 360-368 Pediatric Specialties area
    • The range header was changed to WS 360-370 Pediatric Therapeutics to better the reflect the class numbers in this area
    • WS 360 Pediatric gynecology (General) was canceled. Works on pediatric female genitalia and genital diseases are classed in WS 320-321
    • Two (2) new numbers were created:
      • WS 367 Drug therapy
      • WS 370 Occupational therapy
  • WS 462-463 Adolescent Psychology. Adolescent Psychiatry area
    • Adolescent Mental Disorders was added to header and the range was expanded to encompass the thirty-seven (37) new numbers created in this area
    • Twenty-five (25) new numbers were created for specific topics under WS 462 Adolescent psychology. Adolescent behavior
    • The caption at WS 463 Adolescent psychiatry. Adolescent mental disorders. Psychotherapy. Psychoanalysis. Psychoses was changed to Adolescent mental disorders. Behavioral symptoms to parallel the captions at WM 140 and WS 350.6
    • Four (4) new therapy numbers were created:
      • WS 464 Therapy [General]
      • WS 465 Behavior therapy
      • WS 466 Psychotherapy
      • WS 467 Socioenvironmental therapy
    • Eight (8) new class numbers were created for specific topics in adolescent psychiatry

Highlights from the WT (Geriatrics. Chronic Disease) Review

  • WT 1-39 Reference Works area
    • The section header was changed and expanded to: WT 1-100 Reference Works. General Works
    • Like pediatrics, geriatrics as a specialty was moved from WT 100 to WT 21. WT 100 is for works on both the specialty and geriatrics diseases in general
    • The caption for WT 30 Surveys. Medicosocial problems of gerontology and chronic disease was changed to Socioeconomic factors (Table G).
      A new number was created: WS 30.1 General coverage (Not Table G). The following topics on the aged are no longer classed at WT 30:
      • Housing for the Elderly is now classed in new number WT 101 Aged
      • Lifestyle is now classed in new number WT 101 Aged
      • Elder Abuse is now classed in new number WA 356 Elder Abuse
    • A new number was created for Medicare: WT 31.5. No geographic breakdown was provided because it pertains only to the United States. Works on health insurance for the aged outside of the United States are classed in W 100-275
  • WT 100-166 Geriatrics area:
    • Two (2) new headers created to divide this section more logically:
      • WT 101-141 Aged. Aging
      • WT 145-161 Geriatric Psychology, Psychiatry and Mental Disorders
    • Existing header was modified: WT 166 Geriatric Therapeutics
    • The caption for WT 155 was changed from Senile dementia. Alzheimer's disease to Dementia. Alzheimer disease to match the MeSH headings. Six (6) new class numbers were created to cover specific facets of the disease, similar to the breakdown at WC 503 for Acquired immunodeficiency syndrome.
  • WT 500 Chronic Disease
    • Chronic Disease was deleted from the WT Schedule header
    • A new number was created for general chronic disease: QZ 185
    • WT 500 is limited to works on chronic disease of the Aged

Other 2018 Summer Edition Changes

In addition to the systematic reviews of the WS and WT schedules, other additions and changes were made based on resolved problems. For example:

Allied Health Personnel
Four (4) new class numbers were created for Allied Health Personnel in specific fields based on literary warrant:

  • Cardiology       WG 21.5
  • Mental health   WM 21.5
  • Radiology        WN 21.5
  • Surgery           WO 21.5 [Operating Room Technicians are now classed here rather than at WY 162 Operating room techniques]

Popular Works
Three (3) new class numbers were created based on literary warrant:

  • QU 240      [Nutrition. Vitamins] Popular works
  • WC 503.8   [Acquired Immunodeficiency Syndrome. HIV Infections] Popular works
  • WS 80        [Pediatrics] Popular works (General)

Two (2) class numbers were canceled due to low postings:

  • WI 113   [Digestive System] Popular works
  • WO 75    [Surgery] Popular works (General)

Olfactory Perception
The terms Olfactory Perception and Taste Perception (which take place in the brain) were added to the NLM Classification index to provide classification guidance. Although distinct from Smell and Taste (which take place in the nose and tongue), these perception terms were classed with the organ following previous practice of classing perception terms.

Two (2) class numbers were created:

  • WI 212   Taste. Taste buds. Taste perception
  • WV 302   Olfactory perception. Smell

Bank Terms in the NLM Classification
The NLM Classification was analyzed based on all the Bank terms in the Biological Specimen Banks [N02.278.065] tree. As a result, nine (9) new class numbers were created, and several schedule captions and index terms were modified.

Although there is no specific MeSH term for health care fraud, a sub-index (SI) was added to the general Index term Fraud, pointing to the new number created: W 86 Health care fraud. Health services misuse.

To learn more, see the NLM Classification homepage.

The PDF version will be updated with 2018 winter and summer classification data by the fall of 2018.

By Sharon R. Willis
Cataloging and Metadata Management Section, Technical Services Division

NLM Technical Bulletin National Library of Medicine National Institutes of Health