DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Z66 diagnosis code · Billable category · FY2027

Z66 Do not resuscitate

  • Billable
  • Not CC/MCC
  • POA reported

Z66 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

Where it sits

  1. Chapter 21 Factors influencing health status and contact with health services (Z00-Z99)
  2. Z66 Do not resuscitate status (Z66)
  3. Z66 Do not resuscitate
CC / MCC
Neither
MS-DRG
951
HCC V28
–
POA
Reported
Code Editor
Unacceptable PDX
Index entries
2

Instructions

At Z66

Inclusion terms

  • DNR status

Notes that also apply

Chapter 21 instructions (Notes 3): printed on the chapter 21 page.

Index entries

  • DNR (do not resuscitate) → Z66
  • Status (post)do not resuscitate (DNR) → Z66

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

Medicare grouping and edits

CMS files for Z66
CC / MCCNeither
Appendix BMDC 23 Factors Influencing Health Status and Other Contacts with Health Services, MS-DRG 951 (Other Factors Influencing Health Status…)
Code EditorUnacceptable principal diagnosis
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.