Is C72.3 a billable ICD-10-CM code?

No. C72.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does C72.3 sit in the tabular list?

Neoplasms (C00-D49), in the block Malignant neoplasms of eye, brain and other parts of central nervous system (C69-C72).

What cannot be coded together with C72.3?

C72.3 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 C72.3 (C72) and apply to it just the same.

C72.3

C72.3 — Malignant neoplasm of optic nerve

Non-billable headerICD-10-CM

C72.3 is a non-billable header ICD-10-CM code for malignant neoplasm of optic nerve. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above C72.3

These are not written on C72.3, but they bind it: a note on a category applies to every code beneath it. Billing C72.3 with anything listed here is a denial.

Written on C72 — Malignant neoplasm of spinal cord, cranial nerves and other parts of central nervous system

malignant neoplasm of meninges (C70.-)
malignant neoplasm of peripheral nerves and autonomic nervous system (C47.-)

Other codes that can never be billed with C72.3

These codes carry an Excludes1 note pointing at C72.3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C72.3 alone.

C69Malignant neoplasm of eye and adnexa

Risk adjustment

C72.3 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

C72.3 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 C72.3

3 child codes. Green means billable.

Related codes at this level

Codes that share C72. If C72.3 is not quite right, the correct code is usually one of these.

Questions about C72.3

Is C72.3 a billable ICD-10-CM code?: No. C72.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does C72.3 sit in the tabular list?: Neoplasms (C00-D49), in the block Malignant neoplasms of eye, brain and other parts of central nervous system (C69-C72).
What cannot be coded together with C72.3?: C72.3 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 C72.3 (C72) and apply to it just the same.