Is C81.1 a billable ICD-10-CM code?

No. C81.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does C81.1 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 C81.1?

C81.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above C81.1 (C81) and apply to it just the same.

C81.1

C81.1 — Nodular sclerosis Hodgkin lymphoma

Non-billable headerICD-10-CM

C81.1 is a non-billable header ICD-10-CM code for nodular sclerosis hodgkin lymphoma. It cannot be billed on its own: choose one of the more specific child codes below.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Nodular sclerosis classical Hodgkin lymphoma

Excludes1 inherited from the categories above C81.1

These are not written on C81.1, but they bind it: a note on a category applies to every code beneath it. Billing C81.1 with anything listed here is a denial.

Written on C81 — Hodgkin lymphoma

personal history of Hodgkin lymphoma (Z85.71)

Other codes that can never be billed with C81.1

These codes carry an Excludes1 note pointing at C81.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C81.1 alone.

C26.1Malignant neoplasm of spleen

Risk adjustment

C81.1 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 history

C81.1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead C81.1

11 child codes. Green means billable.

Related codes at this level

Codes that share C81. If C81.1 is not quite right, the correct code is usually one of these.

Questions about C81.1

Is C81.1 a billable ICD-10-CM code?: No. C81.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does C81.1 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 C81.1?: C81.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above C81.1 (C81) and apply to it just the same.