Top CPT Coding Mistakes to Watch

Common CPT coding pitfalls—E/M levels, modifiers, bundling, and telehealth—that drive edits and denials in ambulatory practices.

FYNQ Medical Billing Editorial TeamUpdated May 10, 202610 min read

Educational content for healthcare business operations—not medical advice, legal advice, or financial guarantees.

E/M level and documentation alignment

E/M coding should reflect documented medical decision making and time rules where applicable—not visit length alone.

Preventive plus problem-oriented visits on the same day require bundling awareness and payer-specific edits.

Modifier 25, 59, and global period rules are frequent denial drivers when documentation does not support separate services.

Procedure-heavy specialties should maintain payer-specific bundling cheat sheets reviewed quarterly.

Use coding audits as coaching tools—trend top edits and denials by provider and payer, not only individual shaming.

This article is educational and does not provide legal or coding compliance determinations for specific cases.

How often should clinics run coding audits?

Many groups sample monthly by provider and payer with focused coaching on top three edit themes.

Who should attend coding review meetings?

Include billing leads and clinical champions; keep meetings operational, not adversarial.

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