Z66 ICD-10-CM Code: Do not resuscitate
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
Z66Do not resuscitate
ICD-10-CM diagnosis code · United States clinical modification
Where Z66 sits
- 1
Chapter 21
Factors influencing health status and contact with health services (Z00-Z99)
- 2
Section
Do not resuscitate status (Z66)
- 3
Category Z66
Do not resuscitate
- 4
Code Z66
Do not resuscitate
Notes for this code
Inclusion terms
- DNR status
Code first
No “code first” instruction is listed for Z66.
Use additional code
No “use additional code” instruction is listed for Z66.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for Z66.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Z66.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code Z66 mean?
Z66 is the FY 2027 U.S. ICD-10-CM code for “Do not resuscitate.”
Is Z66 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, Z66 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is Z66 located in ICD-10-CM?
Z66 is listed in Chapter 21, Factors influencing health status and contact with health services (Z00-Z99), within Do not resuscitate status (Z66) (Z66–Z66), under category Z66, Do not resuscitate.
What coding notes are listed for Z66?
Its listed inclusion terms are DNR status. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.