American Health Information Management Association (AHIMA) Certification Practice Exam

What is the ICD-9-CM diagnosis code for primary localized osteoarthrosis of the hip?

1. 715.95

2. 715.15

3. 721.90

4. 715.16

The correct answer is: 715.15

The correct answer for the ICD-9-CM diagnosis code for primary localized osteoarthrosis of the hip is 715.15. This code specifically indicates osteoarthrosis that is localized, meaning it affects a specific joint, in this case, the hip, and it pertains to primary osteoarthrosis, which arises without a prior underlying condition or injury. Understanding the coding is essential as ICD-9-CM codes categorize various types of osteoarthritis based on the joint affected and the nature of the condition—primary versus secondary. Primary localized osteoarthrosis primarily affects single joints without any prior injury or other disease contributing to the condition. Other codes represent different conditions or joints. For instance, 715.95 refers to generalized osteoarthritis of unspecified sites, 721.90 is more related to unspecified spondylosis with radiculopathy and is not appropriate for localized osteoarthritis, and 715.16 refers specifically to knee osteoarthritis rather than hip osteoarthritis. Therefore, 715.15 is the most specific and accurate code for primary localized osteoarthrosis of the hip.