ICD-10 Code C82.63 – Cutaneous follicle center lymphoma, intra-abdominal lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C82.63 – Cutaneous follicle center lymphoma, intra-abdominal lymph nodes
What it is
This code identifies cutaneous follicle center lymphoma involving intra-abdominal lymph nodes. Use it when documentation specifies this lymphoma subtype and the nodal site is within the abdomen.
Clinical signs
Clinical features vary; refer to documentation. Commonly, lymphoma is confirmed by pathology, and records may note enlarged intra-abdominal lymph nodes or skin lesions consistent with cutaneous follicle center lymphoma.
When to use this code
Use this code when the provider documents cutaneous follicle center lymphoma with intra-abdominal lymph node involvement. It may appear in oncology, pathology, or discharge documentation when the primary diagnosis is this specific lymphoma site and subtype.
If the record only says follicular lymphoma, cutaneous lymphoma, or lymphadenopathy without the exact site and type, check documentation before coding. Code only when the anatomic location and diagnosis are clearly linked.
Do not use for
Do not use this code for unspecified lymphoma, noncutaneous follicular lymphoma, or lymph node disease without documented cutaneous follicle center lymphoma. Check documentation if the site or histology is unclear.
Coding tip
Match both the lymphoma subtype and the nodal location exactly as documented before assigning C82.63.