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C78.3

Non-billable

Secondary malignant neoplasm of other and unspecified respiratory organs

C78.3 is the ICD-10-CM code for Secondary malignant neoplasm of other and unspecified respiratory organs. It is a non-billable category code — use a more specific child code such as C78.30 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Parent
C78
Subcodes
2
Edition
FY2026

C00-D49 Neoplasms

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code C78.3?
C78.3 is the ICD-10-CM code for "Secondary malignant neoplasm of other and unspecified respiratory organs". It falls under C00-D49 Neoplasms.
Is C78.3 a billable code?
No — C78.3 is a non-billable header code. Use a more specific child code (such as C78.30) for billing.
What are the subcodes of C78.3?
C78.3 has 2 more specific child codes, including C78.30, C78.39.

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

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