Classification-Index

Classification 2025 Winter Edition

Worldwide source of medical classification resources

Class Index

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Chronic Disease Indicators

General

QZ 185

Aged

WT 500

Infant, child, or adolescent

WS 210

Chronic Disease Surveillance See Chronic Disease Indicators

Chronic Drug-Induced Liver Injury See Chemical and Drug Induced Liver Injury, Chronic

Chronic Encephalopathy See Brain Damage, Chronic

Chronic Encephalopathy, Post-Concussive See Chronic Traumatic Encephalopathy

Chronic Fatigue Disorder See Fatigue Syndrome, Chronic

Chronic Fatigue Syndrome See Fatigue Syndrome, Chronic

Chronic Fatigue and Immune Dysfunction Syndrome See Fatigue Syndrome, Chronic

Chronic Fatigue-Fibromyalgia Syndrome See Fatigue Syndrome, Chronic

Chronic Gaucher Disease See Gaucher Disease

Chronic Granulomatous Disease See Granulomatous Disease, Chronic

Chronic Granulomatous Disease, Atypical See Granulomatous Disease, Chronic

Chronic Granulomatous Disease, X-Linked See Granulomatous Disease, Chronic

Chronic Headache See Headache Disorders

Chronic Hepatitis See Hepatitis, Chronic

Chronic Hepatitis B See Hepatitis B, Chronic

Chronic Hepatitis B Virus Infection See Hepatitis B, Chronic

Chronic Hepatitis C See Hepatitis C, Chronic

Chronic Idiopathic Myelofibrosis See Primary Myelofibrosis

Chronic Illness See Chronic Disease

Chronic Insomnia See Sleep Initiation and Maintenance Disorders

Chronic Kidney Disease-Mineral and Bone Disorder WE 250

Chronic Kidney Diseases See Renal Insufficiency, Chronic

Chronic Kidney Failure See Kidney Failure, Chronic

Chronic Kidney Insufficiency See Renal Insufficiency, Chronic

Chronic Limitation of Activity See Activities of Daily Living

Chronic Lung Injury See Lung Injury

Chronic Lymphocytic Leukemia See Leukemia, Lymphocytic, Chronic, B-Cell

Chronic Lymphocytic Thyroiditis See Hashimoto Disease

Chronic Motor and Vocal Tic Disorder See Tourette Syndrome

Chronic Motor or Vocal Tic Disorder See Tic Disorders

Chronic Obstructive Airway Disease See Pulmonary Disease, Chronic Obstructive

Chronic Obstructive Lung Disease See Pulmonary Disease, Chronic Obstructive

Chronic Obstructive Pulmonary Disease See Pulmonary Disease, Chronic Obstructive

Chronic Obstructive Pulmonary Diseases See Pulmonary Disease, Chronic Obstructive

Chronic Pain

General

WL 704

Diagnosis

WB 176

Nursing (General)

WY 160.5

Prevention and control

WL 704.6

Therapy

WL 704.6

Localized, by site

See also Acute Pain

See also Pain Management

Chronic Pancreatitis See Pancreatitis, Chronic

Chronic Post-Concussive Encephalopathy See Chronic Traumatic Encephalopathy

Chronic Post-Traumatic Encephalopathy See Chronic Traumatic Encephalopathy

Chronic Post-Traumatic Stress Disorder See Stress Disorders, Post-Traumatic

Chronic Post-operative Pain See Pain, Postoperative

Chronic Post-surgical Pain See Pain, Postoperative

Chronic Postoperative Pain See Pain, Postoperative

Chronic Postsurgical Pain See Pain, Postoperative

Chronic Primary Open Angle Glaucoma See Glaucoma, Open-Angle

Chronic Primary Pain See Chronic Pain

Chronic Progressive Hereditary Chorea (Huntington) See Huntington Disease

Chronic Progressive Subcortical Encephalopathy See Dementia, Vascular

Chronic Prostatitis with Chronic Pelvic Pain Syndrome See Prostatitis

Chronic Q Fever See Q Fever