Medical Coding Practice Test

Which entity updates and maintains the diagnosis portion of ICD-9-CM?

1. AHIMA

2. CMS

3. AHA

4. NCHS

The correct answer is: AHA

The American Hospital Association (AHA) updates and maintains the diagnosis portion of ICD-9-CM. The AHA works closely with the National Center for Health Statistics (NCHS) to ensure that the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) diagnosis codes remain current and accurate for use in healthcare settings. The other options, such as AHIMA (American Health Information Management Association) and CMS (Centers for Medicare & Medicaid Services), have roles in healthcare but are not responsible for updating and maintaining the diagnosis portion of ICD-9-CM.