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ICD-10-CM Current in FY 2027

C80.1

Malignant (primary) neoplasm, unspecified

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where C80.1 sits in the official hierarchy. Each level is the code it is classified under.

  1. C80 Parent Malignant neoplasm without specification of site
  2. C80.1 This code Malignant (primary) neoplasm, unspecified

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Inclusion Terms

Cancer NOS

Inclusion Terms

Cancer unspecified site (primary)

Inclusion Terms

Carcinoma unspecified site (primary)

Inclusion Terms

Malignancy unspecified site (primary)

Excludes1

malignant carcinoid tumor of unspecified site ( C7A.00 )

Inherited from C80 — Malignant neoplasm without specification of site

Excludes1

malignant neoplasm of specified multiple sites- code to each site

Inherited from C80 — Malignant neoplasm without specification of site

Excludes1

secondary malignant neoplasm of unspecified site ( C79.9 )

Version History

How C80.1 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Malignant (primary) neoplasm, unspecified

  2. FY 2026 Effective

    Unchanged

    Malignant (primary) neoplasm, unspecified

Related Codes

Other codes under C80

Codes whose official notes reference C80.1

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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