Final answer:
The maintenance of the ICD-9-CM is performed by the National Center for Health Statistics (NCHS) and the Centers for Medicare and Medicaid Services (CMS). It is used for medical coding and billing purposes and is essential for reimbursement, research, and public health analysis.
Step-by-step explanation:
The maintenance of the ICD-9-CM is performed by the National Center for Health Statistics (NCHS) and the Centers for Medicare and Medicaid Services (CMS). These two organizations are responsible for regularly updating and revising the codes in the ICD-9-CM to ensure accuracy and relevance.
The ICD-9-CM is used in various healthcare settings, such as hospitals, clinics, and insurance companies. It is primarily used for medical coding and billing purposes. Medical coders utilize the ICD-9-CM codes to accurately categorize and document diagnoses, procedures, and treatments.
Furthermore, the ICD-9-CM codes are essential for reimbursement processes, as insurance companies rely on them to determine the medical necessity and appropriateness of services provided. Additionally, researchers and public health officials use these codes to analyze disease patterns, track population health, and develop public health interventions.