AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2026 Quarter 3; Ask the Editor
Major Aortopulmonary Collateral Arteries (MAPCA)
The patient presented to the cardiac catheterization lab for evaluation of their pulmonary hypertension and for occlusion of an aortopulmonary (AP) collateral artery. The patient has a history of Tetralogy of Fallot, ventricular septal defect, pulmonary atresia, major aortopulmonary collateral arteries (MAPCA), Mee (or Melbourne) shunt, pulmonary artery unifocalization and right ventricle to pulmonary artery conduit. After completion of the heart catheterization, angiography revealed AP collateral flow to several vessels, including the right thyrocervical trunk, the right subclavian artery, the left internal mammary artery and to the right lung. Microcatheter access was obtained into the AP collateral artery from the descending aorta. Using an MVP™ 3Q micro vascular plug system, coil embolization was performed to occlude the AP collateral vessel. Post occlusion angiography showed the collateral was reduced to minimal flow. What is the diagnosis code(s) for the MAPCA? ...
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Article Overview
The article presents a cardiac catheterization case involving a patient with a complex congenital heart history and a discussion of MAPCA diagnosis coding. It is relevant to readers seeking a concise overview of how the article approaches this topic.
Why This Topic Matters
The case connects congenital cardiovascular anatomy and catheterization context with a diagnostic coding question, making it relevant to clinicians and coding professionals working with congenital heart conditions.
What You Will Learn
- The clinical context of the MAPCA case
- The type of diagnostic coding question addressed
- intended_audiences
- topics
- medical_specialties
- code_sets
- codes
- code_ranges
Who Should Read This
- Medical coders
- Cardiology and congenital heart care professionals
Codes Discussed
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