ICD-10 Code C83.14 – Mantle cell lymphoma, lymph nodes of axilla and upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C83.14 – Mantle cell lymphoma, lymph nodes of axilla and upper limb
What it is
C83.14 identifies mantle cell lymphoma involving lymph nodes in the axilla or upper limb. Use it when the record specifies this anatomic site and confirms mantle cell lymphoma.
Clinical signs
Typical findings include enlarged lymph nodes in the axilla or nearby upper limb region. Clinical features vary; refer to documentation for confirmation of the lymphoma subtype and nodal location.
When to use this code
Use this code when the provider documents mantle cell lymphoma affecting axillary or upper-limb lymph nodes. It is appropriate for confirmed nodal disease at that site, whether newly diagnosed or followed over time. If the site is not stated clearly, check documentation.
Do not use for
Do not use this code for mantle cell lymphoma in other nodal regions or for unspecified lymph node involvement. Avoid it when the record only says lymphoma without confirming mantle cell type.
Coding tip
Match both the histology and the exact lymph node location before assigning C83.14.