Current Procedural Coding (CPT) Part 2
Deepen your CPT knowledge with modifiers, bundling rules, and how CPT codes link to ICD codes on a claim.
📘 Reading Lesson
Lesson Notes
Read through the key concepts before you try the challenge.
CPT Modifiers
Modifiers are two-character additions to a CPT code that provide additional information about a service without changing its definition. They affect how a claim is processed and reimbursed.
- -25: Significant, separately identifiable E/M service on the same day
- -51: Multiple procedures
- -59: Distinct procedural service
- -RT / -LT: Right side / Left side
Linking Diagnoses to Procedures
Every CPT code on a claim must be linked to at least one ICD-10-CM diagnosis code that justifies medical necessity. If the diagnosis does not support the procedure, the claim will be denied.
Medical necessity is the cornerstone of claims approval. The diagnosis must clearly explain why the procedure was performed.
Challenge
Apply what you've learned in this lesson.