C80.1Billable

Malignant (primary) neoplasm, unspecified

Chapter
2. Neoplasms
Category
C80
Effective date
October 1, 2026

Related codes in category C80

C80Malignant neoplasm without specification of siteC80.0Disseminated malignant neoplasm, unspecifiedYesC80.2Malignant neoplasm associated with transplanted organYes

Frequently asked questions

What is ICD-10 code C80.1?

C80.1 is an ICD-10-CM diagnosis code for Malignant (primary) neoplasm, unspecified.

Is C80.1 a billable code?

Yes. C80.1 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is C80.1 in?

C80.1 falls under Chapter 2: Neoplasms.

When did C80.1 become effective?

C80.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to C80.1?

C80.1 belongs to category C80, which includes 3 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.