D49.8 — Neoplasm of unspecified behavior of other specified sites

Not billable

Is D49.8 billable?

No — D49.8 is a non-billable header code. D49.8 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 2 billable codes beneath D49.8.

Billable codes under this header

D49.8 at a glance

Code	D49.8
Description	Neoplasm of unspecified behavior of other specified sites
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes1 — never code together

The conditions below can never be reported together with D49.8 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

neoplasm of unspecified behavior of eyelid (skin) (D49.2)
neoplasm of unspecified behavior of eyelid cartilage (D49.2)
neoplasm of unspecified behavior of great vessels (D49.2)
neoplasm of unspecified behavior of optic nerve (D49.7)

Excludes2 — not included here — inherited from D49

The conditions below are not part of D49.8, but a patient may have both at the same time. When documentation supports it, D49.8 and the excluded code may both be reported.

neoplasms of uncertain behavior (D37-D44, D48)

What codes fall under D49.8? (2)

How long has D49.8 existed?

D49.8 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.

Which codes are confused with D49.8?

ICD-10-CM declares these codes mutually exclusive with D49.8 — exactly one of each pair can be correct for a given encounter.

vs D49.2Neoplasm of unspecified behavior of bone, soft tissue, and skin