C85.92

HCC Category Mapping

What This Code Means

Non-Hodgkin lymphoma of unspecified type affecting the lymph nodes inside the chest cavity.

Coding Tips

• •Intrathoracic lymph nodes include mediastinal and hilar nodes; ensure documentation specifies chest involvement
• •Distinguish from lung parenchymal involvement, which would be coded differently

Clinical Significance

Non-Hodgkin lymphoma involving intrathoracic lymph nodes represents a malignancy of the lymphoid system affecting mediastinal and hilar nodes within the chest cavity. This unspecified subtype designation indicates the histologic type has not been further classified, which limits prognostic precision and treatment planning. Intrathoracic involvement may cause compressive symptoms such as superior vena cava syndrome or airway obstruction.

Documentation Requirements

• ✓Documentation must confirm the anatomical site as intrathoracic lymph nodes (mediastinal, hilar, or tracheobronchial).
• ✓The provider should specify the NHL subtype based on pathology findings whenever possible.
• ✓Active treatment status, staging workup results, and current disease status (active, remission, relapse) must be clearly stated.

Commonly Confused Codes