CPT Code Comparisons
Side-by-side comparisons of commonly confused CPT codes with RVU values, clinical guidelines, and documentation tips.
E/M Office Visits
Office Visit Level 3 vs Level 4
99214 requires moderate complexity MDM vs low complexity for 99213. The wRVU difference is significant and reflects grea...
Office Visit Level 4 vs Level 5
99215 represents the highest level of established patient office visit complexity, requiring high MDM with significantly...
Office Visit Level 2 vs Level 3
99213 involves low complexity decision making with more conditions addressed or data reviewed compared to the straightfo...
New Patient Office Visit Level 3 vs Level 4
New patient visits inherently carry higher RVU values than established patient visits at the same complexity level. 9920...
New Patient Office Visit Level 4 vs Level 5
99205 is the highest-level new patient visit, requiring high MDM complexity. The wRVU premium is substantial and reflect...
Hospital Inpatient
Hospital Subsequent Care Level 2 vs Level 3
99233 reflects the most complex daily hospital care, requiring high MDM. The wRVU difference between 99232 and 99233 is ...
Hospital Admission Level 1 vs Level 3
99223 carries nearly double the wRVU value of 99221. The jump reflects the difference between routine admissions and com...
Hospital Subsequent Care Level 1 vs Level 2
99232 is the most commonly billed subsequent care code for hospitalists. It captures the typical medical inpatient who r...
Emergency Department
ED Visit Level 2 vs Level 3
99283 captures the moderate-acuity ED patient who requires more physician effort in workup and decision-making than a si...
ED Visit Level 3 vs Level 4
99284 represents the higher-acuity ED patient requiring more extensive evaluation, treatment, and risk management....
ED Visit Level 4 vs Level 5
99285 is reserved for the most complex ED encounters involving life threats, emergent decision-making, and high-risk int...
Gastroenterology
Colonoscopy vs Colonoscopy with Biopsy
The biopsy add-on (45380) increases the RVU value to reflect the additional technical skill and time required for tissue...
Colonoscopy with Biopsy vs Colonoscopy with Polypectomy
Polypectomy (45385) carries higher RVUs than biopsy alone (45380) due to the greater complexity and risk of polyp remova...
Why Compare CPT Codes?
Understanding the differences between similar CPT codes is essential for accurate coding, proper reimbursement, and compliance. Many CPT codes differ primarily in the level of medical decision making (MDM) complexity, which directly impacts the work RVU value and your productivity metrics.
Our side-by-side comparisons show you the exact RVU differences between commonly confused codes, explain when each code is appropriate, and provide documentation tips to support your coding decisions. Whether you're comparing E/M levels, procedural codes, or critical care billing, these guides help you code accurately and maximize your legitimate RVU production.