ICD-10-CM
ICD-10 code for Ovarian cancer: C56.9
The closest CDC title for "Ovarian cancer" is C56.9, Malignant neoplasm of unspecified ovary. C56.9 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under C56, then other CDC titles that name malignant neoplasm of unspecified ovary
A header groups codes and is not billed. A billable code is one you can report.
Use additional code
The CDC tabular list says to add the code named here after this one when it applies.
From C56. A note on a category applies to every code under it.
Use additional code to identify any functional activity
Related conditions
Related pages
- C56.9 code detailsNotes, nearby codes, CMS-HCC group
- Category C56Every code under it
- Chapter 2Neoplasms
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Ovarian cancer?
The closest CDC title for "Ovarian cancer" is C56.9, Malignant neoplasm of unspecified ovary. C56.9 is a billable code.
Is C56.9 billable?
Yes. C56.9 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to C56.9?
The CDC tabular list gives 1 "use additional code" note for C56.9 and the categories above it. They are listed on this page.
What chapter is C56.9 in?
Chapter 2. Neoplasms.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.