C78 — Secondary malignant neoplasm of respiratory and digestive organs

Not billable

Is C78 billable?

No — C78 is a non-billable header code. C78 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 15 billable codes beneath C78.

Billable codes under this header

C78 at a glance

Code	C78
Description	Secondary malignant neoplasm of respiratory and digestive organs
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 C78 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

secondary carcinoid tumors of liver (C7B.02)
secondary carcinoid tumors of peritoneum (C7B.04)

Excludes2 — not included here

The conditions below are not part of C78, but a patient may have both at the same time. When documentation supports it, C78 and the excluded code may both be reported.

lymph node metastases (C77.0)

What codes fall under C78? (9)

How long has C78 existed?

C78 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.