AHA Coding Clinic® for ICD-9 - 2009 Issue 3; Ask the Editor
Acute Myocardial Infarction (Hospital A) Transferred to Hospital B for Coronary Intervention
The patient was transferred to Hospital B following a one-week stay in Hospital A for an acute inferior wall myocardial infarction (MI). At hospital B, the patient continued to receive treatment for the MI, cardiac catheterization was performed, which demonstrated occlusive disease in the left anterior descending artery with 99% narrowing and coronary artery bypass grafting was carried out. The provider’s final diagnostic statement at Hospital B listed, “Acute inferior wall MI due to severe coronary atherosclerosis.†What is the appropriate the principal diagnosis for Hospital B? ...
Subscribe or sign in to view the full article.
Article Overview
This article reviews a transfer-of-care inpatient coding scenario involving acute myocardial infarction management across two hospitals, with coronary catheterization and bypass surgery at the receiving facility. It is intended for coders, HIM staff, and auditors who need to understand how transfer cases are discussed in hospital diagnosis sequencing and related inpatient coding guidance.
Why This Topic Matters
Transfer cases can affect principal diagnosis assignment, which influences inpatient record interpretation and downstream reporting. The article helps readers recognize the kind of hospital coding issue presented when treatment continues after transfer.
What You Will Learn
- How a transferred inpatient myocardial infarction case is framed for coding review
- Why coronary intervention context matters in a hospital transfer scenario
- What type of principal diagnosis question the article addresses for the receiving hospital
- How inpatient diagnosis sequencing issues are presented in transfer-related case discussions
Who Should Read This
- Medical coders
- HIM professionals
- Coding auditors
- Revenue cycle staff
- Clinical documentation review staff
Codes Discussed
Subscribe or sign in to view the full article.


Quick, Current, Complete - www.findacode.com