ICD-10 Code C82.06 – Follicular lymphoma grade I, intrapelvic lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C82.06 – Follicular lymphoma grade I, intrapelvic lymph nodes
What it is
C82.06 identifies follicular lymphoma, grade I, located in the intrapelvic lymph nodes. Use it when documentation specifies this low-grade B-cell non-Hodgkin lymphoma and the pelvic nodal site.
Clinical signs
Clinical features vary; refer to documentation. Follicular lymphoma is often described as an indolent lymph node malignancy, with enlarged nodes noted on exam or imaging and pathology confirming grade I disease.
When to use this code
Use this code when the provider documents follicular lymphoma grade I affecting intrapelvic lymph nodes. It is appropriate when pathology, oncology notes, or imaging clearly identify the pelvic nodal location and grade. If the site or grade is not specified, check documentation.
Do not use for
Do not use this code for other follicular lymphoma grades or for lymphoma in a different nodal region. Do not assign it when the record only says lymphoma without confirming grade I and intrapelvic involvement.
Coding tip
Match both the histologic grade and the anatomic site in the final diagnosis before assigning C82.06.