C82.1
⚠ Non-billable (Header)Follicular lymphoma grade II
Neoplasms (C00-D49)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • mature T/NK-cell lymphomas (C84.-)
- • personal history of non-Hodgkin lymphoma (Z85.72)
Child Codes (11)
Clinical Description
ICD-10-CM code C82.1 represents follicular lymphoma grade ii. This code falls under the Neoplasms (C00-D49) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 5-character code at the 4th level of specificity. There are 11 more specific child codes under C82.1. Coders should note that C82.1 has 2 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code C82.1?
ICD-10-CM code C82.1 is "Follicular lymphoma grade II". It belongs to the category: Neoplasms (C00-D49).
Is C82.1 a billable ICD-10 code?
No, C82.1 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with C82.1?
C82.1 has 2 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in C82
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)