Is C82 a billable ICD-10-CM code?

No. C82 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does C82 sit in the tabular list?

Neoplasms (C00-D49), in the block Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96).

What cannot be coded together with C82?

C82 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

C82

C82 — Follicular lymphoma

Non-billable headerICD-10-CM

C82 is a non-billable header ICD-10-CM code for follicular lymphoma. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

mature T/NK-cell lymphomas (C84.-)
personal history of non-Hodgkin lymphoma (Z85.72)

Includes

Conditions this code covers.

follicular lymphoma with or without diffuse areas

Other codes that can never be billed with C82

These codes carry an Excludes1 note pointing at C82. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C82 alone.

C26.1Malignant neoplasm of spleen

Risk adjustment

C82 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead C82

9 child codes. Green means billable.

Questions about C82

Is C82 a billable ICD-10-CM code?: No. C82 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does C82 sit in the tabular list?: Neoplasms (C00-D49), in the block Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96).
What cannot be coded together with C82?: C82 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.