Classification-Index

Classification 2025 Summer Edition

Worldwide source of medical classification resources

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Class Index

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Occlusion, Dental See Dental Occlusion

Occlusion, Dental, Traumatic See Dental Occlusion, Traumatic

Occlusion, Nonchemical Tubal See Sterilization, Tubal

Occlusion, Traumatic Dental See Dental Occlusion, Traumatic

Occlusive Dressings WO 167

Occult Blood QY 160

Occult Primary Neoplasms See Neoplasms, Unknown Primary

Occult Spina Bifida See Spina Bifida Occulta

Occult Spinal Dysraphism See Neural Tube Defects

Occult Spinal Dysraphism Sequence See Neural Tube Defects

Occultism

Medical superstitions

WZ 309

Occupational Accidents See Accidents, Occupational

Occupational Air Pollutants See Air Pollutants, Occupational

Occupational Burnout See Burnout, Professional

Occupational Dentistry WA 412

Occupational Dermatitis See Dermatitis, Occupational

Occupational Diseases WA 400 - WA 495

Forensic aspects

W 925

Mental disorders (General)

WA 495

Ophthalmological

WW 505

Prevention & control

WA 440 - WA 475

Workers' Compensation

HD 7103.6 - HD 7103.65

See also Disability Evaluation

See also Occupational Health Nursing

Occupational Exposure WA 400 - WA 495

See also Air Pollutants, Occupational

See also Multiple Chemical Sensitivity

See also Environmental Exposure

Occupational Health WA 400 - WA 495

Of women

WA 491

Special topics, by subject

Occupational Health Nursing WY 141

Education

WY 18 - WY 18.5

Occupational Health Services WA 412

Mental health

WA 495

See also Mental Health Services

Occupational Hygiene See Occupational Health

Occupational Illnesses See Occupational Diseases

Occupational Injuries

General

WA 485 - WA 487

Ophthalmological

WW 505

See also Accidents, Occupational

Occupational Medicine WA 400 - WA 495

See also Occupational Diseases

See also Occupational Health Services

See also Protective Devices

Occupational Noise See Noise, Occupational

Occupational Nursing See Occupational Health Nursing

Occupational Safety See Occupational Health

Occupational Status See Employment

Occupational Strain See Occupational Stress

Occupational Stress WA 495

Occupational Therapists WB 555

Occupational Therapy

General

WB 555

Child

WS 370

Hospital department

WX 225

In psychotherapy

WM 450.5.O2

See also Occupational Therapists

See also Rehabilitation, Vocational

Occupational Therapy Department, Hospital WX 225

Occupational Therapy Departments, Hospital See Occupational Therapy Department, Hospital

Occupations

Statistics and demographic discussions

HB 2581 - HB 2787

Specific occupations, by type

See also Health Occupations

See also Vocational Guidance

Occupations, Allied Health See Allied Health Occupations

Ocean Dolphins See Dolphins

Oceanian People See Oceanians

Oceanians

Anthropology (General)

GN 662 - GN 671

Health issues

WA 300

In medicine

Biography

Collective

WZ 150

Prefer classification by specialty if applicable

Individual

WZ 100

History

WZ 70

Mental health issues

WA 305

Specific topics, by topic

See also specific group of people

Oceanic Ancestry Group See Oceanians

Oceanography GC 10.9 - GC 11.2

As a profession

GC 30.5

See also Submarine Medicine

See also Marine Biology

See also Oceans and Seas

Oceans See Oceans and Seas

Oceans and Seas

General works

GC 10.9 - GC 11.2

Balneology

WB 525

See also Seawater

Ochotona See Lagomorpha

Ochotonidae See Lagomorpha

Ochratoxin See Ochratoxins

Ochratoxins QW 630.5.M9

OCT Tomography See Tomography, Optical Coherence

Octocaine See Lidocaine