The International Classification of Health Interventions (ICHI) is a system of classifying procedure codes being developed by the World Health Organization. ...
ICD-10 Procedure Coding System (ICD-10-PCS) (used in United States)
ICD-9-CM Volume 3 (subset of ICD-9-CM) (used in United States)
Canadian Classification of Health Interventions (CCI) (used in Canada. Replaced CCP.) [2]
Nursing Interventions Classification (NIC) (used in United States) [3]
SNOMED (P axis)(english only, translations available but not useful)
The Health Care Procedure Coding System (HCPCS) is based on the American Medical Associations Current Procedural Terminology (CPT). ... The Current Procedural Terminology is the list maintained by the American Medical Association to provide unique billing codes for services rendered. ... The ICD-10 Procedure Coding System (ICD-10-PCS) is a system of medical classification used for Procedural codes. ... ICD-9-CM Volume 3 is a system of Procedural codes. ...