Class R:Medicine is a classification used by the Library of Congress Classification system. This page outlines the subclasses of Class R.^{[1] [2]}

R - Medicine (General)

5-130.5......................................General works

131-687.....................................History of medicine. Medical expeditions

690-697.....................................Medicine as a profession. Physicians

702-703.....................................Medicine and the humanities. Medicine and disease in relation to history, literature, etc.

711-713.97................................Directories

722-722.32................................Missionary medicine. Medical missionaries

723-726.....................................Medical philosophy. Medical ethics

726.5-726.8...............................Medicine and disease in relation to psychology. Terminal care. Dying

727-727.5..................................Medical personnel and the public. Physician and the public

728-733.....................................Practice of medicine. Medical practice economics

735-854.....................................Medical education. Medical schools. Research

855-855.5..................................Medical technology

856-857.....................................Biomedical engineering. Electronics. Instrumentation

858-859.7..................................Computer applications to medicine. Medical informatics

864............................................Medical records

895-920.....................................Medical physics. Medical radiology. Nuclear medicine

RA - Public aspects of medicine

1-418.5....................................Medicine and the state

396................................................Regulation of medical education. Licensure

398................................................Registration of physicians, pharmacists, etc.

399................................................Regulation of medical practice. Evaluation and quality control of medical care. Medical audit

405................................................Death certification

407-409.5......................................Health status indicators. Medical statistics and surveys

410-410.9......................................Medical economics. Economics of medical care. Employment

411-415.........................................Provisions for personal medical care. Medical care plans

418-418.5......................................Medicine and society. Social medicine. Medical sociology

421-790.95..............................Public health. Hygiene. Preventive medicine

428-428.5......................................Public health laboratories, institutes, etc.

440-440.87....................................Study and teaching. Research

565-600.........................................Environmental health Including sewage disposal, air pollution, nuisances, water supply

601-602.........................................Food and food supply in relation to public health

604-618.........................................Parks, public baths, public carriers, buildings, etc.

619-637.........................................Disposal of the dead. Undertaking. Burial. Cremation. Cemeteries

638................................................Immunity and immunization in relation to public health

639-642.........................................Transmission of disease

643-645.........................................Disease (Communicable and noninfectious) and public health

645.3-645.37.................................Home health care services

645.5-645.9...................................Emergency medical services

646-648.3......................................War and public health

648.5-767......................................Epidemics. Epidemiology. Quarantine. Disinfection

771-771.7......................................Rural health and hygiene. Rural health services

773-788.........................................Personal health and hygiene Including clothing, bathing, exercise, travel, nutrition, sleep, sex hygiene

790-790.95....................................Mental health. Mental illness prevention

791-954...................................Medical geography. Climatology. Meteorology

960-1000.5..............................Medical centers. Hospitals. Dispensaries. Clinics. Including ambulance service, nursing homes, hospices

1001-1171...............................Forensic medicine. Medical jurisprudence. Legal medicine

1190-1270...............................Toxicology. Poisons

RB - Pathology

1-17........................................General works

24-33.......................................Pathological anatomy and histology

37-56.5....................................Clinical pathology. Laboratory technique

57...........................................Post-mortem examination. Autopsies

127-150...................................Manifestations of disease

151-214...................................Theories of disease. Etiology. Pathogenesis

RC - Internal medicine

49-52.......................................Psychosomatic medicine

71-78.7....................................Examination. Diagnosis Including radiography

81-82.......................................Popular medicine

86-88.9....................................Medical emergencies. Critical care. Intensive care. First aid

91-103.....................................Disease due to physical and chemical agents

109-216...................................Infectious and parasitic diseases

251..........................................Constitutional diseases (General)

254-282...................................Neoplasms. Tumors. Oncology Including cancer and carcinogens

306-320.5................................Tuberculosis

321-571...................................Neurosciences. Biological psychiatry. Neuropsychiatry

346-429.........................................Neurology. Diseases of the nervous system Including speech disorders

435-571...............................................Psychiatry

475-489.....................................................Therapeutics. Psychotherapy

490-499.....................................................Hypnotism and hypnosis. Suggestion therapy

500-510.....................................................Psychoanalysis

512-569.5..................................................Psychopathology

512-528...........................................................Psychoses

530-552...........................................................Neuroses

554-569.5........................................................Personality disorders. Behavior problems Including sexual problems, drug abuse, suicide, child abuse

569.7-571..................................................Mental retardation. Developmental disabilities

581-951...................................Specialties of internal medicine

581-607.........................................Immunologic diseases. Allergy

620-627.........................................Nutritional diseases. Deficiency diseases

627.5-632......................................Metabolic diseases

633-647.5......................................Diseases of the blood and blood-forming organs

648-665.........................................Diseases of the endocrine glands. Clinical endocrinology

666-701.........................................Diseases of the circulatory (Cardiovascular) system

705-779.........................................Diseases of the respiratory system

799-869.........................................Diseases of the digestive system. Gastroenterology

870-923.........................................Diseases of the genitourinary system. Urology

924-924.5......................................Diseases of the connective tissues

925-935.........................................Diseases of the musculoskeletal system

952-1245.................................Special situations and conditions

952-954.6......................................Geriatrics

955-962.........................................Arctic medicine. Tropical medicine

963-969.........................................Industrial medicine. Industrial hygiene

970-986.........................................Military medicine. Naval medicine

1000-1020.....................................Submarine medicine

1030-1160.....................................Transportation medicine Including automotive, aviation, and space medicine

1200-1245.....................................Sports medicine

RD - Surgery

1-31.7.....................................General works

32-33.9....................................Operative surgery. Technique of surgical operations

49-52.......................................Surgical therapeutics. Preoperative and postoperative care

57...........................................Surgical pathology

58...........................................Reparative processes after operations (Physiological)

59...........................................Surgical shock. Traumatic shock

63-76.......................................Operating rooms and theaters. Instruments, apparatus, and appliances

78.3-87.3.................................Anesthesiology

91-91.5....................................Asepsis and antisepsis. Sterilization (Operative)

92-97.8....................................Emergency surgery. Wounds and injuries

98-98.4....................................Surgical complications

99-99.35..................................Surgical nursing

101-104...................................Fractures (General)

118-120.5................................Plastic surgery. Reparative surgery

120.6-129.8.............................Transplantation of organs, tissues, etc.

130..........................................Prosthesis. Artificial organs

137-145...................................Surgery in childhood, adolescence, pregnancy, old age

151-498...................................Military and naval surgery

520-599.5................................Surgery by region, system, or organ

651-678...................................Neoplasms. Tumors. Oncology

680-688...................................Diseases of the locomotor system (Surgical treatment)

701-811...................................Orthopedic surgery

792-811.........................................Physical rehabilitation

RE - Ophthalmology

75-79.......................................Examination. Diagnosis

80-87.......................................Eye surgery

88............................................Ophthalmic nursing

89............................................Eye banks

91-912.....................................Particular diseases of the eye

918-921...................................Color vision tests, charts, etc.

925-939...................................Refraction and errors of refraction and accommodation

939.2-981................................Optometry. Opticians. Eyeglasses

986-988...................................Artificial eyes and other prostheses

991-992...................................Ocular therapeutics

RF - Otorhinolaryngology

110-320...................................Otology. Diseases of the ear

341-437...................................Rhinology. Diseases of the nose, accessory sinuses, and nasopharynx

460-547...................................Laryngology. Diseases of the throat

RG - Gynaecology and Obstetrics

104-104.7................................Operative gynecology

133-137.6................................Conception. Artificial insemination. Contraception

138.........................................Sterilization of women

159-208...................................Functional and systemic disorders. Endocrine gynecology

211-483...................................Abnormalities and diseases of the female genital organs

484-485...................................Urogynecology and obstetric urology. Urogynecologic surgery

491-499...................................Diseases of the breast

500-991...................................Obstetrics

551-591.........................................Pregnancy

600-650.........................................The embryo and fetus

648.....................................................Spontaneous abortion. Miscarriage

651-721.........................................Labor. Parturition

725-791.........................................Obstetric operations. Operative obstetrics

801-871.........................................Puerperal state

940-991.........................................Maternal care. Prenatal care services

RJ - Pediatrics

47.3-47.4.................................Genetic aspects

50-51.......................................Examination. Diagnosis

52-53.......................................Therapeutics

59-60.......................................Infant and neonatal morbidity and mortality

91............................................Supposed prenatal influence. Prenatal culture. Stirpiculture

101-103...................................Child health. Child health services

125-145...................................Physiology of children and adolescents

206-235...................................Nutrition and feeding of children and adolescents

240..........................................Immunization of children (General)

242-243...................................Hospital care

245-247...................................Nursing of children. Pediatric nursing

250-250.3................................Premature infants

251-325...................................Newborn infants Including physiology, care, treatment, diseases

370-550...................................Diseases of children and adolescents

499-507.........................................Mental disorders. Child psychiatry

RK - Dentistry

58-59.3....................................Practice of dentistry. Dental economics

60.7-60.8.................................Preventive dentistry

280..........................................Oral and dental anatomy and physiology

301-493...................................Oral and dental medicine. Pathology. Diseases

501-519...................................Operative dentistry. Restorative dentistry

520-528...................................Orthodontics

529-535...................................Oral surgery

641-667...................................Prosthetic dentistry. Prosthodontics

RL - Dermatology

87-94.......................................Care and hygiene

95............................................Pathological anatomy

110-120...................................Therapeutics

130-169...................................Diseases of the glands, hair, nails

201-331...................................Hyperemias, inflammations, and infections of the skin

391-489...................................Atrophies. Hypertrophies

675..........................................Chronic ulcer of the skin. Bedsores

701-751...................................Diseases due to psychosomatic and nerve disorders. Dermatoneuroses

760-785...................................Diseases due to parasites

790..........................................Pigmentations. Albinism

793..........................................Congenital disorders of the skin. Nevi. Moles

RM - Therapy. Pharmacology

138.........................................Drug prescribing

139.........................................Prescription writing

146-146.7................................Misuse of therapeutic drugs. Medication errors

147-180...................................Administration of drugs and other therapeutic agents

182-190...................................Other therapeutic procedures. Including acupuncture, pneumatic aspiration, spinal puncture, pericardial puncture

214-258...................................Diet therapy. Dietary cookbooks

259.........................................Vitamin therapy

260-263...................................Chemotherapy

265-267...................................Antibiotic therapy. Antibiotics

270-282...................................Immunotherapy. Serotherapy

283-298...................................Endocrinotherapy. Organotherapy

300-666...................................Drugs and their actions

671-671.5................................Nonprescription drugs. Patent medicines

695-893...................................Physical medicine. Physical therapy. Including massage, exercise, occupational therapy, hydrotherapy, phototherapy, radiotherapy, thermotherapy, electrotherapy

930-931...................................Rehabilitation therapy

950.........................................Rehabilitation technology

RS - Pharmacy and materia medica

125-131.9................................Formularies. Collected prescriptions

139-141.9................................Pharmacopoeias

151.2-151.9.............................Dispensatories

153-441...................................Materia medica

160-167.........................................Pharmacognosy. Pharmaceutical substances (Plant, animal, and inorganic)

189-190.........................................Assay methods. Standardization. Analysis

192-199.........................................Pharmaceutical technology

200-201.........................................Pharmaceutical dosage forms

250-252.........................................Commercial preparations. Patent medicines

355-356.........................................Pharmaceutical supplies

400-431.........................................Pharmaceutical chemistry

441................................................Microscopical examination of drugs

RT - Nursing

89-120.....................................Specialties in nursing

RV - Botanic, Thomsonian, and eclectic medicine

1-431.................................Botanic, Thomsonian, and eclectic medicine

RX - Homeopathy

211-581...................................Diseases, treatment, etc.

601-675...................................Materia medica and therapeutics

RZ - Other systems of medicine

201-275...................................Chiropractic

301-397.5................................Osteopathy

399..........................................Osteo-magnetics, neuropathy, etc., A-Z

400-408...................................Mental healing

409.7-999................................Miscellaneous systems and treatments. Including magnetotherapy, mesmerism, naturopathy, orgonomic medicine, phrenology, radiesthesia