ICD 10 Coding Alert

Question: What ICD-10-CM code should I report for an aortic root abscess?

New Hampshire Subscriber

Answer: An aortic root abscess is usually the result of an infection of the aortic valve. If there is no diagnosis indicating an underlying infection, you should request the chart or report be addended to include it so long as the provider agrees. The diagnosis then depends on whether the valve is native or a prosthesis. If the valve is native, you’re left with Infection/heart/see Carditis. You may then code via the degree of specificity or report unspecified code I51.89 (Other ill-defined heart diseases).

If the valve is prosthetic, you will report code T82.6xxA (Infection and inflammatory reaction due to cardiac valve prosthesis, initial encounter).

You’ll then consider the following parent codes:

• T82.6 Use additional code to identify infection
• Excludes2: failure and rejection of transplanted organs and tissue (T86.-)

In this case, the additional code to identify the infection will actually be the code you’d report for the native aortic root abscess — I51.89.