DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

C58 diagnosis code · Billable category · FY2027

C58 Malignant neoplasm of placenta

  • Billable
  • Not CC/MCC
  • HCC 22
  • POA reported

C58 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

Where it sits

  1. Chapter 2 Neoplasms (C00-D49)
  2. C51-C58 Malignant neoplasms of female genital organs (C51-C58)
  3. C58 Malignant neoplasm of placenta
CC / MCC
Neither
MS-DRG
731-733, 754-756
HCC V28
22
POA
Reported
Code Editor
Maternity
Index entries
2

Instructions

At C58

Includes

  • choriocarcinoma NOS
  • chorionepithelioma NOS

Excludes1

  • chorioadenoma (destruens) (D39.2) D39.2
  • hydatidiform mole NOS (O01.9) O01.9
  • invasive hydatidiform mole (D39.2) D39.2
  • male choriocarcinoma NOS (C62.9-) C62.9
  • malignant hydatidiform mole (D39.2) D39.2

Notes that also apply

Block C51-C58 instructions (Includes 1): printed on the block page.

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

Index entries

  • Choriocarcinomaunspecified sitefemale → C58
  • Carcinoma (malignant)chorionicunspecified sitefemale → C58

NCHS Alphabetic Index. Index first, then the Tabular List.

Medicare grouping and edits

CMS files for C58
CC / MCCNeither
Appendix BMDC 13 Diseases and Disorders of the Female Reproductive System, MS-DRG 731-733 (Uterine and Adnexa Procedures for Malignancy with MCC…); MDC 13 Diseases and Disorders of the Female Reproductive System, MS-DRG 754-756 (Malignancy, Female Reproductive System with MCC…)
Code EditorAge conflict: maternity diagnosis (age 9–64)
POAReported
HCC V28HCC 22 Bladder, Colorectal, and Other Cancers

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

Hierarchy