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U.S. ICD-10-CM · FY 2027

C79.83 ICD-10-CM Code: Secondary malignant neoplasm of oral cavity

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

C79.83

Secondary malignant neoplasm of oral cavity

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where C79.83 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

    Malignant neoplasms of ill-defined, other secondary and unspecified sites (C76-C80)

  3. 3

    Category C79

    Secondary malignant neoplasm of other and unspecified sites

  4. 4

    Subcategory C79.8

    Secondary malignant neoplasm of other specified sites

  5. 5

    Code C79.83

    Secondary malignant neoplasm of oral cavity

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for C79.83.

Code first

No “code first” instruction is listed for C79.83.

Use additional code

No “use additional code” instruction is listed for C79.83.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for C79.83.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for C79.83.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code C79.83 mean?

C79.83 is the FY 2027 U.S. ICD-10-CM code for “Secondary malignant neoplasm of oral cavity.”

Is C79.83 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, C79.83 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is C79.83 located in ICD-10-CM?

C79.83 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms of ill-defined, other secondary and unspecified sites (C76-C80) (C76–C80), under category C79, Secondary malignant neoplasm of other and unspecified sites and subcategory C79.8, Secondary malignant neoplasm of other specified sites.

What coding notes are listed for C79.83?

No inclusion terms are listed for C79.83 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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