Reader Questions: Base Dx Code on Reason for Test

Why This Topic Matters

Selecting the appropriate primary diagnosis affects claim accuracy and how the encounter is represented in the medical record. The article is relevant to anyone who codes diagnostic tests performed after an injury when additional findings appear on the report.

Article Sections

1. Question

   Introduces a scenario involving emergency-room imaging after a fall and asks how to handle an unrelated finding noted on the study.

2. Answer

   Summarizes the general coding approach for identifying the diagnosis that best reflects the reason for the encounter and notes the use of additional coexisting conditions when supported by the record.

3. ICD-9 official guidelines

   References official ICD-9-CM guidance and a general statement about sequencing diagnoses for visits and encounters.