Z66 Do not resuscitate

Billable ICD-10-CM code, FY2026.

Applicable to

• DNR status

Applies from Z66 Do not resuscitate

Applicable to

• DNR status

MS-DRG index

Defines the logic of DRG(s) 951 in MDC 23.

Approximate ICD-9-CM (GEMs)

• V49.86 Do not resuscitate status

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Code annotations containing back-references to Z66

Back-references to Z66

• Type 1 Excludes: Y66 Nonadministration of surgical and medical care ("DNR status (Z66)")

Back-references to Z66

• Type 1 Excludes: Y66 Nonadministration of surgical and medical care ("DNR status (Z66)")

Diagnosis Index entries for Z66

• DNR (do not resuscitate)
• Status (post) › do not resuscitate (DNR)

Nearby codes

• Z66 Do not resuscitate (this code)