How many systems are included in the ROS?

The Review of Systems (ROS) is a critical component of the medical history-taking process, where a provider inquires about different organ systems to identify any symptoms the patient may have experienced. The correct answer, which indicates that 14 systems are included in the ROS, aligns with the standard definitions used in evaluation and management coding guidelines.

A systematic approach in gathering this information is established by the definitions outlined in the Current Procedural Terminology (CPT) coding system. The 14 systems encompass various areas of the body and function, including:

1. Constitutional (overall health)

2. Eyes

3. Ears, Nose, Mouth, Throat

4. Cardiovascular

5. Respiratory

6. Gastrointestinal

7. Genitourinary

8. Musculoskeletal

9. Integumentary (skin and breast)

10. Neurological

11. Psychiatric

12. Endocrine

13. Hematologic/Lymphatic

14. Allergic/Immunologic

This comprehensive approach ensures that all major aspects of a patient's health are considered when formulating a diagnosis or care plan. Understanding the specific systems included in the ROS is essential for accurate documentation, coding, and billing, as it influences the level