DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Y66 diagnosis code · Billable category · FY2027

Y66 Nonadministration of surgical and medical care

  • Billable
  • Not CC/MCC
  • POA reported

Y66 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

CC / MCC
Neither
MS-DRG
–
HCC V28
–
POA
Reported
Code Editor
–
Index entries
0

Instructions

At Y66

Inclusion terms

  • Premature cessation of surgical and medical care

Excludes1

  • DNR status (Z66) Z66
  • palliative care (Z51.5) Z51.5

Notes that also apply

Block Y62-Y69 instructions (Excludes1 1, Excludes2 1): printed on the block page.

Instructions for the group Y62-Y84 (Includes 2): printed on the chapter 20 page.

Chapter 20 instructions (Notes 1): printed on the chapter 20 page.

Medicare grouping and edits

CMS files for Y66
CC / MCCNeither
Code Editor–
POAReported
HCC V28–

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

Hierarchy