When the agency is undisclosed or partially disclosed, however, both the agent and the principal are liable. Where the principal is not bound because the agent has no actual or apparent authority, the purported agent is liable to the third party for breach of the implied warranty of authority.
The International Classification of Diseases (ICD) is the standard diagnostic tool for epidemiology, health management and clinical purposes. This includes the analysis of the general health situation of population groups.
This publication provides definitions and payment information on the following code sets:  International Classification of Diseases, Ninth Edition, Clinical Modification (ICD-9-CM);  International Classification of Diseases, Tenth Edition, Clinical Modification (ICD-10-CM);  International Classification of Diseases, Tenth Edition, Procedure Coding System (ICD-10-PCS);  Current Procedural Terminology (CPT); and.  Healthcare Common Procedure Coding System (HCPCS).