D49 — Neoplasms of unspecified behavior

Not billable

Is D49 billable?

No — D49 is a non-billable header code.

D49 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 14 billable codes beneath D49.

Billable codes under this header

D49 at a glance

Code	D49
Description	Neoplasms of unspecified behavior
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes2 — not included here

The conditions below are not part of D49, but a patient may have both at the same time. When documentation supports it, D49 and the excluded code may both be reported.

neoplasms of uncertain behavior (D37-D44, D48)

Includes

Conditions classified to D49.

'growth' NOS
neoplasm NOS
new growth NOS
tumor NOS

Note

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.

What codes fall under D49? (10)

How long has D49 existed?

D49 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.