The 2024 E/M coding guidelines introduce refinements to office visit documentation and billing. Here’s what providers and coders need to know:
🔹 Major Changes for 2024
1. Office/Outpatient Visits (99202-99215)
✔ Medical Decision-Making (MDM) Only – Time-based coding is still allowed, but MDM remains the primary criterion.
✔ Revised MDM Elements:
- Problem Points – Clarified definitions for “acute vs. chronic” illnesses.
- Data Review – Simplified counting of tests/records analyzed.
- Risk – Updated examples of “moderate risk” decisions.
2. Prolonged Services
✔ New Prolonged Care Code – 99418 (for inpatient/observation, ≥30 min beyond primary service).
✔ Deleted Codes – 99358-99359 (standalone prolonged services).
3. Split/Shared Visits
✔ Definition Change – The “substantive portion” now includes any part of MDM or time.
✔ Documentation – Must clearly identify the performing provider (physician or NPP).
🔹 Coding Best Practices
✔ Document MDM Clearly – Specify:
- Number/complexity of problems
- Data reviewed (labs, imaging, old records)
- Risk of complications
✔ Avoid Common Errors:
- Undercoding (e.g., using 99212 when 99213 is justified).
- Overdocumentation (irrelevant details don’t increase MDM level).
- Mismatched Time & MDM (if using time, ensure it aligns with the code).
🔹 Key Resources
- AMA’s 2024 CPT® E/M Guidelines – Download Here
- CMS 2024 Final Rule Summary – CMS.gov
