All ICD10 Codes
Z40-Z53Not billable, use a more specific code below

Encounters for other specific health care (Z40-Z53)

chapter 21: Factors Influencing Health Status and Contact with Health Services

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Instructional notes

Includes: conditions that are coded here

  • Categories Z40-Z53 are intended for use to indicate a reason for care. They may be used for patients who have already been treated for a disease or injury, but who are receiving aftercare or prophylactic care, or care to consolidate the treatment, or to deal with a residual state

Excludes2: not included here, code separately if applicable

  • follow-up examination for medical surveillance after treatment (Z08-Z09)

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.

Read Section I.C.21 (page 92)

All codes under Z40-Z53

Z40-Z53 can't be used on a claim. Pick a billable code below; grey headings group them.

Z40-Z53 MS-DRGs

This code does not group to an MS-DRG as a principal diagnosis.