The Assistant Who 'Fixed' the Diagnosis
A billing assistant at a small practice is responsible for submitting claims. She notices that a claim for a patient visit was submitted with a diagnosis of 'acute bronchitis' (J20.9) when the physician's note says 'acute bronchitis, recurrent, with underlying COPD.' She edits the claim to add COPD (J44.9) because 'it pays more.' She does not contact the physician. The claim is paid at a higher rate. Three months later, an internal audit flags the change. The assistant says, 'I was just making sure the claim was accurate - the note says COPD.'
1. Is the assistant's edit permissible? Identify the specific problems with what she did.
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No - the edit is not permissible, even though the note mentions COPD.
Problem 1: She is not the provider. Diagnoses must be documented by the treating provider and coded from that documentation. A billing assistant cannot add a diagnosis to increase payment. Only the provider can establish the diagnosis.
Problem 2: 'It pays more' is the stated motive. The assistant's own words establish that payment, not accuracy, drove the change. That is a fraud indicator regardless of whether the note mentions COPD.
Problem 3: The note is ambiguous. 'Acute bronchitis, recurrent, with underlying COPD' does not clearly establish that COPD was treated or addressed at this visit. Coding COPD as a billable diagnosis requires that it was evaluated, managed, or affected the encounter. The assistant made a clinical determination she is not qualified to make.
Problem 4: No provider query. The correct action was to send a query to the physician asking whether COPD was addressed at the visit and should be coded. She skipped that step.
Problem 5: The edit was hidden. She changed the claim without documenting the change or notifying anyone. Even a legitimate correction should be traceable.
Bottom line: The edit is an unsupported diagnosis change made by a non-clinician for payment reasons. It should be reversed, the overpayment refunded, and the assistant retrained.
2. What should the practice do now, and how does this differ from a legitimate coding correction?
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Immediate steps:
- Reverse the claim and refund the overpayment.
- Audit the assistant's other claims - if she did this once, check whether it is a pattern.
- Retrain on the boundary between coding and clinical documentation.
- Document the finding and the corrective action.
- Review the workflow - why did the assistant have edit access to diagnoses without a query step? Add a control: diagnosis changes require a provider query or provider attestation.
How this differs from a legitimate correction:
| Legitimate correction | This case |
|---|---|
| Based on provider documentation or a provider response to a query | Based on the assistant's own inference |
| Made to fix a coding error (e.g., wrong code for the documented diagnosis) | Made to increase payment |
| Documented and traceable | Hidden |
| Within the coder's scope | Outside the assistant's scope |
Key distinction: A legitimate correction changes how a documented diagnosis is coded. This change added a new diagnosis that the provider had not clearly established for the encounter. The note mentioning COPD is not the same as the provider documenting that COPD was evaluated and managed at this visit.
If the note truly supported COPD, the correct path was a provider query: 'The note references underlying COPD. Was COPD evaluated or managed at this visit? If so, please document.' That preserves both accuracy and compliance.