U.S. ICD-10-CM · FY 2027

D49 ICD-10-CM Code: Neoplasms of unspecified behavior

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

Code definition

Official description

D49

Neoplasms of unspecified behavior

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

Classification

Where D49 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

    Neoplasms of unspecified behavior (D49)

  3. 3

    Category D49

    Neoplasms of unspecified behavior

  4. 4

    Code D49

    Neoplasms of unspecified behavior

More specific choices

Codes under D49

D49 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for D49.

Code first

No “code first” instruction is listed for D49.

Use additional code

No “use additional code” instruction is listed for D49.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for D49.

Excludes2

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

  • neoplasms of uncertain behavior (D37-D44, D48)

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 D49 mean?

D49 is the FY 2027 U.S. ICD-10-CM code for “Neoplasms of unspecified behavior.”

Is D49 a billable or specific ICD-10-CM code?

No. D49 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is D49 located in ICD-10-CM?

D49 is listed in Chapter 2, Neoplasms (C00-D49), within Neoplasms of unspecified behavior (D49) (D49–D49), under category D49, Neoplasms of unspecified behavior.

What coding notes are listed for D49?

No inclusion terms are listed for D49 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: neoplasms of uncertain behavior (D37-D44, D48).

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