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D49

Non-billable

Neoplasms of unspecified behavior

D49 is the ICD-10-CM code for Neoplasms of unspecified behavior. It is a non-billable category code — use a more specific child code such as D49.0 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Subcodes
10
Edition
FY2026

C00-D49 Neoplasms

Includes

  • •'growth' NOS
  • •neoplasm NOS
  • •new growth NOS
  • •tumor NOS

Excludes1 — not coded here

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

Notes

  • •Category D49 classifies by site neoplasms of unspecified morphology and behavior. The term 'mass', unless otherwise stated, is not to be regarded as a neoplastic growth.

Frequently asked questions

What is ICD-10 code D49?
D49 is the ICD-10-CM code for "Neoplasms of unspecified behavior". It falls under C00-D49 Neoplasms.
Is D49 a billable code?
No — D49 is a non-billable header code. Use a more specific child code (such as D49.0) for billing.
What are the subcodes of D49?
D49 has 10 more specific child codes, including D49.0, D49.1, D49.2.
What is excluded from D49?
Excludes1 (not coded here): neoplasms of uncertain behavior (D37-D44, D48).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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