ICD-10 Code C82.56 – Diffuse Follicle Center Lymphoma, Intrapelvic Lymph Nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C82.56 – Diffuse follicle center lymphoma, intrapelvic lymph nodes
What it is
C82.56 identifies diffuse follicle center lymphoma involving intrapelvic lymph nodes. Use it when documentation specifies this lymphoma subtype and the pelvic nodal site.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include enlarged pelvic lymph nodes confirmed by imaging or biopsy, with pathology describing diffuse follicle center lymphoma.
When to use this code
Use this code when the provider documents diffuse follicle center lymphoma and names intrapelvic lymph nodes as the involved site. It may also apply when pathology or oncology notes clearly link the lymphoma to pelvic nodes. If the anatomic site is not specified, check documentation.
Do not use for
Do not use it for other follicular lymphomas, unspecified lymphoma, or lymphomas in non-pelvic sites. If the record does not confirm intrapelvic nodal involvement, choose a different code or verify the documentation.
Coding tip
Match both the lymphoma subtype and the exact nodal location before assigning C82.56.