Skip Navigation Bar
NLM Classification 2015: Worldwide source of medical library classification



Classify works on obstetrical nursing in WY 157.


  WQ 1-150 Reference Works. General Works
  WQ 152-175 Childbirth. Prenatal Care
  WQ 200-212 Reproduction. Pregnancy
  WQ 215-270 Pregnancy Complications
  WQ 300-330 Labor
  WQ 400-450 Obstetric Surgical Procedures
  WQ 500-505 Postpartum Period

Reference Works. General Works

WQ 1
Organizations. Societies (General or not elsewhere classified) (Cutter from name of organization or society)
(Used for both monographs and serials)
Includes membership lists issued serially or separately. Classify directories in WQ 22. Classify annual reports, journals, etc., in W1. For academies and institutes, see WQ 23-24.
Collected works (General)
WQ 5
By several authors
WQ 7
By individual authors
WQ 9
Addresses. Essays. Lectures (General)
WQ 11
History (Table G)
WQ 11.1
General coverage (Not Table G)
WQ 13
Dictionaries. Encyclopedias
(Used for both monographs and serials)
WQ 15
Classification. Terminology
(Used for both monographs and serials)
WQ 16
Tables. Statistics
(Used for both monographs and serials)
Classify here maternal mortality statistics without causes of death. Classify statistics including causes of death in WA 900.
WQ 17
Atlases. Pictorial works
Classify atlases limited to a particular part of the system here also.
WQ 18
Classify here works about education.
WQ 18.2
Educational materials
(Used for both monographs and serials)
Classify here educational materials, e.g., outlines, questions and answers, programmed instruction, computer-assisted instruction, etc., regardless of format. Classify textbooks, regardless of format, by subject.
WQ 19
Schools, departments, and faculties of obstetrics (Table G)
(Used for both monographs and serials)
Include here works on the history of schools. Classify works on schools of obstetrics and gynecology here; classify works on schools of gynecology only in WP 19. Classify courses of study, catalogs, etc., in W 19.5.
WQ 19.1
General coverage (Not Table G)
(Used for both monographs and serials)
WQ 20
Research (General)
Classify here works about research in general. Classify works about research on a particular subject by subject.
WQ 21
Obstetrics as a profession. Ethics. Peer review
WQ 22
Directories (Table G)
(Used for both monographs and serials)
WQ 22.1
General coverage (Not Table G)
(Used for both monographs and serials)
Clinics, dispensaries, academies, etc.
WQ 23
Collective (Table G)
WQ 23.1
General coverage (Not Table G)
WQ 24
Individual (Cutter from name of clinic) (Table G)
WQ 25
Laboratory manuals. Technique
WQ 26
Equipment and supplies
Classify catalogs in W 26.
WQ 26.5
Informatics. Automatic data processing. Computers (General)
Classify works on use for special subjects by subject.
Maternity hospitals
WQ 27
Collective (Table G)
WQ 27.1
General coverage (Not Table G)
WQ 28
Individual (Cutter from name of hospital) (Table G)
Museums, exhibitions, etc.
WQ 28.5
WQ 28.6
Individual (Cutter from name of museum, etc.)
WQ 32
Laws (Table G)
(Used for both monographs and serials)
WQ 32.1
General coverage (Not Table G)
(Used for both monographs and serials)
WQ 33
Discussion of law (Table G)
(Used for both monographs and serials)
WQ 33.1
General coverage (Not Table G)
(Used for both monographs and serials)
WQ 34
Malpractice (Table G)
WQ 34.1
General coverage (Not Table G)
WQ 39
Handbooks. Resource guides
(Used for both monographs and serials)
Classify handbooks for midwifery at WQ 165.
WQ 100
General works
WQ 150
Popular works on pregnancy and childbirth

Childbirth. Prenatal Care

WQ 152
Natural childbirth
WQ 155
Home childbirth
WQ 160
WQ 165
Manuals for midwives. Handbooks
WQ 175
Prenatal care

Reproduction. Pregnancy

WQ 200
General works (Table G)
WQ 200.1
General coverage (Not Table G)
WQ 202
Pregnancy determination
Cf. QY 335 Pregnancy tests.
WQ 203
Preimplantation diagnosis
WQ 205
Fertilization. Development of ovum. General physiology of reproduction
WQ 206
Sex determination analysis
Classify works on genetic sex determination in QS 638.
WQ 208
Reproductive techniques
(e.g., Artificial insemination. Embryo transfer. Fertilization in vitro)
WQ 209
Prenatal diagnosis. Fetal monitoring
WQ 210
Fetus. Extraembryonic membranes. Umbilical cord. Perinatology (General)
Classify works on fetal experimentation in general in W 20.5.
WQ 210.5
Fetal anatomy, physiology, and biochemistry
WQ 211
Fetal diseases (General or not elsewhere classified)
WQ 212
Cf. WK 920 Placental hormones.

Pregnancy Complications

WQ 215
(e.g., Eclampsia)
WQ 220
Ectopic pregnancy
WQ 225
Spontaneous abortion. Fetal death. Perinatal death
Cf. WQ 440 Induced abortion; W 867 Criminal abortion. Classify works on perinatal mortality in WA 900.
WQ 235
Multiple pregnancy
WQ 240
Pregnancy complications (General or not elsewhere classified)
Classify works on pre-enclampsia in WQ 215.
WQ 244
Cardiovascular complications
WQ 248
WQ 252
Hematologic complications
WQ 256
Infectious diseases
WQ 260
Urologic complications
WQ 270
Maternal death


WQ 300
General works
WQ 305
Physiology. Clinical course
WQ 307
WQ 310
WQ 320
Disproportions of the pelvis
WQ 330
Complications of labor
(e.g., Postpartum hemorrhage)

Obstetric Surgical Procedures

WQ 400
General works
Classify works on obstetrical anesthesia in WO 450.
[WQ 410]
[This number not used]
Classify preparatory manipulation in obstetrical surgery in WQ 415.
WQ 415
Delivery (including preparatory manipulation)
WQ 425
Use of forceps
WQ 430
Cesarean section. Symphysiotomy and similar techniques
[WQ 435]
[This number not used]
Classify embryotomy in WQ 440.
WQ 440
Induction of labor. Therapeutic abortion. Techniques of induced abortion
Cf. WQ 225 Spontaneous abortion and W 867 Crimimal abortion. Classify works on sociological and religious aspects of induced abortion in HQ 767-767.52. Classify works on public health aspects of abortion in WA 550.
WQ 450
Resuscitation of the newborn

Postpartum Period

WQ 500
General works. Postnatal care
WQ 505
Puerperal infection