American Health Information Management Association (AHIMA) Certification Practice Exam

What is the correct ICD-9-CM diagnosis code for Paget's disease of the bone?

1. 170.9

2. 213.9

3. 238.0

4. 731.0

The correct answer is: 731.0

The correct ICD-9-CM diagnosis code for Paget's disease of the bone is 731.0. This code specifically designates Paget's disease, which is a chronic disorder that can result in enlarged and misshapen bones. The ICD-9-CM coding system provides nuanced classifications for various medical conditions, and in this case, 731.0 clearly identifies Paget’s disease as pertaining to bone pathology. The other options represent different conditions and thus do not apply. For example, 170.9 corresponds to malignant neoplasms of unspecified sites, 213.9 is used for benign neoplasms of unspecified sites, and 238.0 pertains to other benign neoplasms of lymphoid, hematopoietic, and related tissue. Hence, using 731.0 is essential for accurate medical coding, reflecting Paget's disease appropriately within the ICD-9-CM coding framework.