Reader Questions: Combo Codes Mark COPD With Other Conditions

Why This Topic Matters

The topic is relevant because it shows how billing for diagnostic testing, ED visit complexity, and diagnosis selection can affect claim acceptance and coding accuracy. It also helps coders understand how combo diagnosis reporting is discussed in legacy ICD-9 coding contexts.

Article Sections

1. Question

   A reader describes an emergency department visit involving respiratory symptoms, pulmonary testing, and a denial question tied to the submitted claim.

2. Answer

   The response addresses the billing issue at a high level and discusses how the testing and ED service are considered together.

3. Benefit

   This section explains the broader effect on the ED visit level when the overall service work supports a different E/M selection.

4. ICD-9 coding

   The article shifts to diagnosis coding guidance in an older ICD-9 context for documenting COPD with bronchitis.

5. Note

   A final note clarifies the relationship between the combined diagnosis code and a separate acute bronchitis code in the example discussed.