Final answer:
ICD9-CM Volume 1&2 is concerned with disease.
Step-by-step explanation:
The ICD9-CM Volume 1&2 is concerned with disease. The International Classification of Diseases (ICD) is used in clinical fields to classify diseases and monitor morbidity and mortality. ICD codes are used by clinicians, medical laboratories, health-care management systems, medical coders, medical billers, vital-records keepers, and epidemiologists for various purposes related to disease diagnosis, treatment, billing, and statistics.