DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

C23 diagnosis code · Billable category · FY2027

C23 Malignant neoplasm of gallbladder

  • Billable
  • CC
  • HCC 20
  • POA reported

C23 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

CC / MCC
CC
MS-DRG
435-437
HCC V28
20
POA
Reported
Code Editor
–
Index entries
0

Instructions

Notes that also apply

Block C15-C26 instructions (Excludes1 1, Excludes2 1): printed on the block page.

Chapter 2 instructions (Notes 8): printed on the chapter 2 page.

Medicare grouping and edits

CMS files for C23
CC / MCCCC
PDX exclusion list0286 (21 codes)
Appendix BMDC 07 Diseases and Disorders of the Hepatobiliary System and Pancreas, MS-DRG 435-437 (Malignancy of Hepatobiliary System or Pancreas with MCC…)
Code Editor–
POAReported
HCC V28HCC 20 Lung and Other Severe Cancers

CC as a secondary diagnosis, not when the principal diagnosis is on its PDX exclusion list.

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy