ICD-10 Code C85.14 – Unspecified B-cell lymphoma, lymph nodes of axilla and upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C85.14 – Unspecified B-cell lymphoma, lymph nodes of axilla and upper limb
What it is
This code identifies a B-cell lymphoma in the lymph nodes of the axilla or upper limb when the specific subtype is not documented. It indicates a malignant lymphoid neoplasm with an unspecified B-cell origin.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include enlarged axillary lymph nodes, a palpable mass, or symptoms related to lymphoma such as fatigue or unexplained weight loss.
When to use this code
Use this code when the record states B-cell lymphoma involving axillary or upper-limb lymph nodes but does not name a more specific histology. It also applies when pathology confirms lymphoma in that nodal region and the subtype remains unspecified. If the documentation identifies a more exact lymphoma type, code that instead.
Do not use for
Do not use this code for Hodgkin lymphoma, T-cell lymphomas, or lymphomas in other nodal regions unless documentation supports this site. Check documentation if the primary site or subtype is unclear.
Coding tip
Code the documented nodal site and the most specific lymphoma type available; if the subtype is not stated, use C85.14.