AHA Coding Clinic® for ICD-9 - 2006 Issue 3; Ask the Editor
Malignancy of Right Main Lobe and Right Bronchus
A patient with advanced lung cancer, status post right upper lobectomy, is admitted for work-up due to increasing shortness of breath. During this admission, a bronchoscopy with biopsy is performed that showed an endobronchial tumor at the level of the right main bronchus extending to the right upper lobe bronchus with metastatic spread to mediastinum and intrathoracic lymph nodes. The patient expired during attempted tumor debridement, prior to the completion of the procedure. What is the correct diagnosis code assignment? Is it appropriate to use two separate codes for the separate location of the tumors or is this considered to be contiguous sites requiring the fifth digit of “8â€? Coding Clinic defines contiguous sites (fourth digit “8â€) as a primary malignant neoplasm that overlaps the boundaries of two or more subcategories within a three-digit category and whose point of origin cannot be determined. ...
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Article Overview
This premium article addresses a diagnosis coding scenario in oncology involving lung cancer, bronchoscopy findings, and metastatic disease within the chest. It is aimed at coders who need help understanding how overlapping anatomic sites and contiguity concepts are discussed in official coding guidance. The article also references Coding Clinic terminology in relation to cancer site assignment.
Why This Topic Matters
Accurate diagnosis coding for thoracic malignancies depends on recognizing when a neoplasm involves more than one anatomic subcategory and when metastatic involvement is also documented. This article helps clarify the scope of the coding question so coders can evaluate whether the case fits a single overlapping-site assignment or separate site reporting under official guidance.
What You Will Learn
- How the article frames a lung cancer diagnosis coding question involving overlapping thoracic sites.
- How metastatic spread in the mediastinum and intrathoracic lymph nodes factors into the discussion.
- How Coding Clinic terminology is used in the context of contiguous-site malignancy coding.
- How the article approaches the question of separate codes versus a single overlapping-site assignment.
Who Should Read This
- Inpatient coders
- Outpatient coders
- Hospital coding staff
- Clinical documentation integrity specialists
- Oncology coders
Codes Discussed
Code Ranges Discussed
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