Classification-Index

Classification 2025 Winter Edition

Worldwide source of medical classification resources

Class Index

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Skin Tests QY 260

Skin Tone See Skin Pigmentation

Skin Transplantation WO 610

See also Surgical Flaps

Skin Tuberculosis See Tuberculosis, Cutaneous

Skin Ulcer WR 598

Skin Wrinkling See Skin Aging

Skin, Artificial WR 670

Skull

General

WE 705 - WE 707

Animal

Domestic

SF 901

Wild

QL 822

Anthropology

GN 71 - GN 131

See also Craniotomy

See also Intracranial Pressure

See also Trephining

Skull Base WE 705

Skull Base Neoplasms WE 707

Skull Fracture, Linear See Skull Fractures

Skull Fracture, Non-Depressed See Skull Fractures

Skull Fractures WE 706

See also Craniocerebral Trauma

Skull Neoplasms WE 707

Slang See Vocabulary

SLAP Tears See Shoulder Injuries

Slaughter House See Abattoirs

Slaughter Houses See Abattoirs

Slaughterhouses See Abattoirs

Slaveholding See Enslavement

Slavery See Enslavement

Slaves See Enslaved Persons

Sledding See Snow Sports

Sleep WL 108

Sleep Aids, Pharmaceutical QV 85

Sleep Apnea Syndromes WL 115

Sleep Apnea, Mixed See Sleep Apnea Syndromes

Sleep Apnea, Mixed Central and Obstructive See Sleep Apnea Syndromes

Sleep Arousal Disorders

General

WL 108

Psychological aspects

WM 188

Sleep Bruxism

General

WM 188

Associated with temporomandibular joint disorders

WU 140.5

Associated with tooth diseases

WU 246 - WU 247

Sleep Bruxism, Adult See Sleep Bruxism

Sleep Bruxism, Childhood See Sleep Bruxism

Sleep Debt See Sleep Deprivation

Sleep Deprivation

General

WL 108

In personal hygiene

QT 265

Sleep Disorder, Adjustment See Dyssomnias

Sleep Disorder, Environmental See Dyssomnias

Sleep Disorder, Limit-Setting See Dyssomnias

Sleep Disorders See Sleep Wake Disorders

Sleep Disorders, Extrinsic See Dyssomnias

Sleep Fragmentation See Sleep Deprivation

Sleep Habits See Sleep

Sleep Hygiene QT 265

See also Sleep Wake Disorders

Sleep Hypopnea See Sleep Apnea Syndromes

Sleep Inducers See Sleep Aids, Pharmaceutical

Sleep Initiation and Maintenance Disorders

General

WL 108

Psychological aspects

WM 188

Sleep Initiation Dysfunction See Sleep Initiation and Maintenance Disorders

Sleep Insufficiency See Sleep Deprivation

Sleep Medicine Specialty WB 115

Sleep Promoting Agents See Sleep Aids, Pharmaceutical

Sleep Stages WL 108