ICD-10 Code C82.07 – Follicular lymphoma grade I, spleen (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C82.07 – Follicular lymphoma grade I, spleen
What it is
C82.07 identifies follicular lymphoma, grade I, involving the spleen. Use it when the record documents this low-grade B-cell non-Hodgkin lymphoma at that specific site.
Clinical signs
Clinical features vary; refer to documentation. Common findings in splenic lymphoma include splenomegaly, abdominal fullness, and imaging or pathology confirming follicular lymphoma grade I.
When to use this code
Use C82.07 when the provider documents follicular lymphoma grade I with splenic involvement, whether newly diagnosed or established. Code it from pathology, oncology, or discharge documentation that clearly names the spleen as the involved site.
If the record only says follicular lymphoma without grade or site, check documentation before assigning this code. You should also confirm whether the spleen is the primary documented site versus a separate involved site.
Do not use for
Do not use this code for other lymphoma grades, unspecified follicular lymphoma, or splenic enlargement without documented lymphoma. Check documentation if the spleen is mentioned only as part of generalized disease.
Coding tip
Verify both the grade and the spleen involvement in the final provider statement before coding.