Is C23 a billable ICD-10-CM code?

Yes. C23 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does C23 sit in the tabular list?

Neoplasms (C00-D49), in the block Malignant neoplasms of digestive organs (C15-C26).

C23

C23 — Malignant neoplasm of gallbladder

Billable / specific codeICD-10-CM

C23 is a billable, specific ICD-10-CM code for malignant neoplasm of gallbladder. It is valid for submission on a claim.

Risk adjustment

C23 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

HCC 20 Lung and Other Severe Cancers1.136 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. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

C23 is named in 73 Medicare coverage policies — 73 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
A52479Oral Anticancer Drugs - Policy Article
A52479Oral Anticancer Drugs - Policy Article
A52480Oral Antiemetic Drugs (Replacement for Intravenous Antiemetics) - Policy Article

Code history

C23 has not changed since FY2024 — no addition, revision or deletion across the FY2024–FY2027 ICD-10-CM releases.

Questions about C23

Is C23 a billable ICD-10-CM code?: Yes. C23 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C23 sit in the tabular list?: Neoplasms (C00-D49), in the block Malignant neoplasms of digestive organs (C15-C26).