Classification-Index

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Classification 2025 Summer Edition

Worldwide source of medical classification resources

Class Index

← Previous

...

Necrosis, Aseptic, of Femur Head See Femur Head Necrosis

Necrosis, Avascular, of Bone See Osteonecrosis

Necrosis, Avascular, of Femur Head See Femur Head Necrosis

Necrotic Arachnidism See Spider Bites

Necrotizing Arteritis See Polyarteritis Nodosa

Necrotizing Enterocolitis See Enterocolitis, Necrotizing

Necrotizing Pancreatitis, Acute See Pancreatitis, Acute Necrotizing

Necrotizing Pyelonephritis See Pyelonephritis

Need Certification, Health Care See Certificate of Need

Special topics, by subject

See also Needle-Exchange Programs

Needle-Exchange Program See Needle-Exchange Programs

Needle-Exchange Programs WA 110

In association with a specific infectious disease, with the disease

See also Substance Abuse Treatment Centers

See Needle Sharing

Needlefish See Beloniformes

Needlefishes See Beloniformes

Needlesharing See Needle Sharing

Needs See Health Services Needs and Demand

Needs and Demand, Health Services See Health Services Needs and Demand

Needs Assessment W 84.3

In special areas, by subject

Nefopam QV 95

Nefopam Hydrochloride See Nefopam

Negative Eugenics See Eugenics

Negative Euthanasia See Euthanasia, Passive

Negative Feedback, Biochemical See Feedback, Physiological

Negative Predictive Value See Predictive Value of Tests

Negative Pressure Isolation See Patient Isolation

Negative Pressure Patient Isolation See Patient Isolation

Negative Reinforcement See Reinforcement, Psychology

Negative-Pressure Pods See Patient Isolators

Negative-Pressure Rooms See Patient Isolators

Negative-Pressure Wards See Patient Isolators

Negativistic Personality Disorder See Passive-Aggressive Personality Disorder

Negatrons See Electrons

Neglect Experience, Childhood See Child Abuse

Neglect Experiences, Childhood See Child Abuse

Neglected Diseases

General

WC 685

Economics

W 74

Specific disease, with the disease

Neglected Tropical Diseases See Neglected Diseases

Negligence See Malpractice

Negligence, Professional See Malpractice

Negotiating

In business

HD 58.6

Psychology

BF 637.N4

Special topics, by subject