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Ann Reilly: Navigating Postoperative vs. Acute Blood Loss Anemia – A CDI Case Study

Ann Reilly/LinkedIn

Aug 21, 2026, 21:38

Ann Reilly: Navigating Postoperative vs. Acute Blood Loss Anemia – A CDI Case Study

Ann Reilly, Principal Inpatient DRG and Compliance Consultant at Reilly Coding Strategies, shared a post on LinkedIn:

“Case Reveal: Acute Blood Loss Anemia

This record supports postoperative anemia—but acute blood loss anemia is not yet clearly established.

Why?

The hemoglobin declined significantly after surgery.
Surgical blood loss was documented.
IV fluids may have contributed to hemodilution.
Most importantly, the surgeon documented only ‘postoperative anemia.’

The clinical picture may justify clarification, but the coder should not independently convert postoperative anemia into acute blood loss anemia.

A compliant query could ask the provider to clarify the type and cause of the anemia as well as clinical significance, based on the documented clinical findings and continued monitoring.

Before placing a query though I would check:

Was the patient symptomatic?
How closely was the H&H monitored?
Did they check one more lab, or mulitple?

If I were to query I would query for clinical significance first and foremost.

Especially if this is the only CC condition on the chart.

This is exactly the kind of diagnosis and documentation targeted for audit and potentially flagged in error if the condition wasn’t clinically significant enough to warrant coding it.

Key takeaway:

A postoperative hemoglobin decline is an indicator to investigate, not a diagnosis to infer or an automatic query just for specificity/type of anemia.”

Ann Reilly