Anaplastic large cell lymphoma, ALK-neg, nodes mult site

Anaplastic large cell lymphoma, ALK-negative, lymph nodes of multiple sites

📋Clinical Description

This code identifies a specific type of non-Hodgkin lymphoma characterized by large, anaplastic cells that do not express the anaplastic lymphoma kinase (ALK) protein. It indicates that the disease is present in multiple lymph node regions throughout the body.

🎯When to Use

Apply this code when documentation confirms a diagnosis of ALK-negative anaplastic large cell lymphoma affecting multiple lymph node sites. This diagnosis is typically established through biopsy and immunohistochemical staining for ALK protein.

💡Coding Tips

Ensure the pathology report explicitly states "ALK-negative" and confirms involvement of multiple lymph node regions.
Distinguish from ALK-positive anaplastic large cell lymphoma, which has a different code.
Do not use for extranodal involvement; specific codes exist for those presentations.

AI-generated reference — verify against official guidelines

Code Hierarchy

▲C84.7Anaplastic large cell lymphoma, ALK-negative

C84.78(current)

Crosswalks

200.68ApproxICD-9 200.68ApproxICD-9

Same Category

C84Mature T/NK-cell lymphomas C84.0Mycosis fungoides C84.00Mycosis fungoides, unspecified site C84.01Mycosis fungoides, lymph nodes of head, face, and neck