Is ICD-10-CM code Z01 billable?

No, Z01 (Encounter for other special examination without complaint, suspected or reported diagnosis) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code Z01 belong to?

Z01 belongs to Chapter 21 of the ICD-10-CM tabular list: Z00–Z99 (Factors Influencing Health Status and Contact with Health Services).

Z01Not billable, use a more specific code below

Encounter for other special examination without complaint, suspected or reported diagnosis

In Persons encountering health services for examinations (Z00-Z13), chapter 21: Factors Influencing Health Status and Contact with Health Services

23 billable codes under Z01: none are a CC or MCC; none map to an HCC.

Instructional notes

Includes: conditions that are coded here

routine examination of specific system

Excludes1: not coded here, use a different code

encounter for examination for administrative purposes (Z02.-)
encounter for examination for suspected conditions, proven not to exist (Z03.-)
encounter for laboratory, radiologic and imaging examinations for sign(s) and symptom(s) - code to the sign(s) or symptom(s)

Excludes2: not included here, code separately if applicable

encounter for laboratory and radiologic examinations as a component of general medical examinations (Z00.0-)
screening examinations (Z11-Z13)

Also applies, from Persons encountering health services for examinations (Z00-Z13)

These notes sit on Z00-Z13 and apply to every code under it, including Z01.

Excludes2: not included here, code separately if applicable

examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers when and how to use Z codes (Z00-Z99) for encounters and supplementary information, including contact, status, history, screening, aftercare, exams, and social determinants of health.

Use of Z Codes in Any Healthcare Setting (page 92)
Z Codes Indicate a Reason for an Encounter or Provide Additional Information about a Patient Encounter (page 93)
Categories of Z Codes (page 93)

Read Section I.C.21 (page 92)

All codes under Z01

Z01 can't be used on a claim. Pick a billable code below; grey headings group them.

Z01 MS-DRGs

As the principal diagnosis, the billable codes under Z01 group to MS-DRG 951 or 795 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 951 Other Factors Influencing Health Status (23 of 23 codes)
DRG 795 Normal Newborn (4 of 23 codes)

Other codes that refer to Z01

Notes on these codes point to Z01.

Z02.7 Excludes1: encounter for general medical examination (Z00-Z01, Z02.0-Z02.6, Z02.8-Z02.9)
Z71.84 Excludes2: encounter for other special examination without complaint, suspected or reported diagnosis (Z01.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Health Checkup

Regular checkups with your health care provider are different from appointments for sickness or injury. These checkups include physical exams as well as preventive care. Preventative care may include:

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.