Case of the Week
Breast Mass Evaluation
You see a new office patient with a lump in her left breast.
- Patient Status: New Patient.
- Data Ordered: Ultrasound, renal profile, and CBC.
- Plan: Return visit is scheduled for next week to review results.
- Time: Total time spent is 30 minutes.
What is the correct level of care?
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Case of the Week
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The Correct, Audit-Proof Code Is:
99204
Coding by MDM yields a Moderate complexity score. As a New Patient, this corresponds to code 99204.
Why MDM Overrides Time in This Case
For a new patient, you code based on either time or MDM. You should select whichever results in the higher level of service. Here, MDM complexity supports a significantly higher level than time alone.
Time-Based Result: 99203
The total time spent was 30 minutes. This just meets the minimum for a 99203 (30-44 minutes) and is far below the 45-minute threshold required for a 99204.
MDM-Based Result: 99204
The overall MDM complexity was determined to be Moderate. For a new patient, Moderate MDM points clearly to the 99204 level of care.
MDM Deep Dive: The "2 out of 3" Rule
You only need two of the three components to meet a given level. Here, Problems and Data hit Moderate, carrying the entire score.
Problems Addressed: Moderate
A breast lump represents an "undiagnosed new problem with uncertain prognosis," which inherently qualifies as a Moderate problem.
Data Reviewed: Moderate
You ordered exactly 3 unique tests (Ultrasound, Renal Profile, CBC). Ordering any combination of 3 tests or documents meets the requirement for Moderate data complexity (Category 1).
Risk of Complications: Low
The immediate management plan consists of scheduling diagnostic testing without prescribing high-risk medications or immediate invasive interventions.
The "2 out of 3" Rule Confirms Moderate MDM
Even with a Low Risk component, having two components at the "Moderate" level secures the overall MDM score.
Data
MODERATE
Problems
MODERATE
(Middle Value)
Risk
LOW
The middle value is Moderate, which becomes the final MDM level.
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