2026 ICD-10-CM Diagnosis Code Z00.5Encounter for examination of potential donor of organ and tissue

ICD-10-CM Codes›Z00–Z99›Z00-Z13›Z00

ICD-10-CM Z00.5
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z00.5 is a billable ICD-10-CM diagnosis code for encounter for examination of potential donor of organ and tissue. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 951. The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. Coders also document this condition as eligible to be a donor. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Medical examination/evaluation.

Code Identity

ICD-10-CM Code
Z00.5
Billable Status
Yes — Valid for Submission
Code Describes
Encounter for examination of potential donor of organ and tissue
Short Description
Encounter for exam of potential donor of organ and tissue
Parent Code
Z00
Encounter for general examination without complaint, suspected or reported diagnosis

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ00-Z13Persons encountering health services for examinations
CategoryZ00Encounter for general examination without complaint, suspected or reported diagnosis
This CodeZ00.5Encounter for examination of potential donor of organ and tissue

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z00.5.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Present on Admission (POA)Billing

Z00.5 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Persons encountering health services for examinations (Z00-Z13).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Eligible to be a donor
  • Finding of eligibility to be a donor
  • Willing to be donor of kidney
  • Willing to be donor of liver
  • Willing to be donor of organ

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC014
Medical examination/evaluation
Default principal diagnosis: inpatient No · outpatient Yes

Patient EducationClinical

Organ Donation

Organ donation takes healthy organs and tissues from one person for transplantation into another. Experts say that the organs from one donor can save or help as many as 50 people. Organs you can donate include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Z00.5 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V70.8 General medical exam NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z00.5Overview

What is the ICD-10 code for encounter for examination of potential donor of organ and tissue?

The ICD-10-CM code for encounter for examination of potential donor of organ and tissue is Z00.5 (sometimes written as Z005). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Is Z00.5 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report encounter for examination of potential donor of organ and tissue on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Z00.5 group to?

On inpatient claims, encounter for examination of potential donor of organ and tissue maps to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.556. Higher weights mean higher Medicare reimbursement.

Can Z00.5 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because encounter for examination of potential donor of organ and tissue describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z00.5 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for encounter for examination of potential donor of organ and tissue on inpatient claims. The code appears in the Persons encountering health services for examinations (Z00-Z13) range of the CMS exempt list.