Is C57.9 a billable ICD-10-CM code?

Yes. C57.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does C57.9 sit in the tabular list?

Neoplasms (C00-D49), in the block Malignant neoplasms of female genital organs (C51-C58).

C57.9

C57.9 — Malignant neoplasm of female genital organ, unspecified

Billable / specific codeICD-10-CM

C57.9 is a billable, specific ICD-10-CM code for malignant neoplasm of female genital organ, unspecified. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Malignant neoplasm of female genitourinary tract NOS

Other codes that can never be billed with C57.9

These codes carry an Excludes1 note pointing at C57.9. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C57.9 alone.

C68Malignant neoplasm of other and unspecified urinary organs
C76Malignant neoplasm of other and ill-defined sites

Risk adjustment

C57.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

HCC 22 Bladder, Colorectal, and Other Cancers0.363 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

C57.9 is named in 40 Medicare coverage policies — 40 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52370Billing and Coding: Bevacizumab and biosimilars
A53101Billing and Coding: MolDX: bioTheranostics Cancer TYPE ID® Update
A54188Billing and Coding: MolDX: bioTheranostics Cancer TYPE ID®
A54386Billing and Coding: MolDX: bioTheranostics Cancer TYPE ID® Update

Related codes at this level

Codes that share C57. If C57.9 is not quite right, the correct code is usually one of these.

Questions about C57.9

Is C57.9 a billable ICD-10-CM code?: Yes. C57.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C57.9 sit in the tabular list?: Neoplasms (C00-D49), in the block Malignant neoplasms of female genital organs (C51-C58).