Susan Goldsmith has written:

'Medical coding fundamentals' -- subject(s): Clinical Coding, International Classification of Diseases, International classification of diseases, Problems and Exercises, International statistical classification of diseases and related health problems

The current classification system used today is the International Classification of Diseases (ICD), which is published by the World Health Organization (WHO). This system is used to classify diseases, injuries, symptoms, and other health-related conditions for the purpose of medical billing, research, and public health monitoring.

When these signs are absent and the patient appears to be comfortable, health care providers can consider their interventions to have been successful. It is also important to document interventions used, and which ones were successful.