Is C09.8 a billable ICD-10 code?

Yes. C09.8 (Malignant neoplasm of overlapping sites of tonsil) is billable and can be used for insurance claims. Always verify payer-specific requirements.

C09.8 ✓ Billable

Malignant neoplasm of overlapping sites of tonsil

Q: What is ICD-10 code C09.8?

ICD-10-CM code C09.8 stands for "Malignant neoplasm of overlapping sites of tonsil". It is a billable code in the Neoplasms chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Neoplasms

Code

C09.8

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Neoplasms

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code C09.8?

ICD-10-CM code C09.8 represents Malignant neoplasm of overlapping sites of tonsil. It is a billable diagnosis code in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.

Is C09.8 billable?

Yes. C09.8 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is C09.8 in?

C09.8 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.

Related codes in the C09 category

C09 Malignant neoplasm of tonsil Non-billable C09.0 Malignant neoplasm of tonsillar fossa Billable C09.1 Malignant neoplasm of tonsillar pillar (anterior) (posterior) Billable C09.9 Malignant neoplasm of tonsil, unspecified Billable

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