Sternal Non-Union and Pseudoarthrosis Following Sternotomy

The patient is seen for complete sternal nonunion with pseudoarthrosis of a right lower hemisternotomy following mitral valve repair and Maze procedure. What is the diagnosis code assignment for nonunion of the sternum that is not related to a fracture? ...

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Note:  The following article synopsis was NOT provided by the AHA. It was created by Find-A-Code/innoviHealth.

Article Overview

This short coding article focuses on diagnosis code assignment for a sternal nonunion and pseudoarthrosis case after sternotomy-related cardiac surgery. It is intended for coders and billing professionals working with postoperative musculoskeletal complications and related chest wall conditions. The piece centers on identifying the appropriate diagnosis coding approach for a non-fracture sternum nonunion case.

Why This Topic Matters

Postoperative chest wall complications can affect diagnosis coding, claim accuracy, and medical record specificity. This article helps readers understand how this type of case is classified within diagnosis coding guidance.

What You Will Learn

  • How a postprocedural sternal nonunion scenario is framed for diagnosis coding
  • Which broad diagnosis coding categories are relevant to postoperative musculoskeletal complications
  • How the article approaches a non-fracture sternum nonunion case in coding context
  • How related chest wall deformity coding is considered alongside the main diagnosis topic

Who Should Read This

  • Medical coders
  • Coding auditors
  • Billing staff
  • Revenue cycle professionals
  • Clinical documentation improvement specialists

Codes Discussed

  • ICD-10-CM: M96.89
  • ICD-10-CM: M95.4

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