Z51

Non-Billable
ChapterZ00–Z99
Rankcategory
Official Description

Encounter for other aftercare and medical care

Metadata & Insights
  • Non-billable category (requires more specific sub-code).
  • Chapter 21: Factors Influencing Health Status and Contact with Health Services (Z00-Z99).

Z40-Z53 Parent Instructions

Includes
  • 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)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • follow-up examination after treatment (Z08-Z09)
Code Also
  • condition requiring care

Clinical Hierarchy

BillableHas subcodes
CH21Factors influencing health status and contact with health services (Z00-Z99)
Z40-Z53Encounters for other specific health care (Z40-Z53)
Z51Encounter for other aftercare and medical careNot billable
Z51.0Encounter for antineoplastic radiation therapyBillable
Z51.1Encounter for antineoplastic chemotherapy and immunotherapySubcodes
Z51.5Encounter for palliative careBillable
Z51.6Encounter for desensitization to allergensBillable
Z51.8Encounter for other specified aftercareSubcodes
Z51.AEncounter for sepsis aftercareBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Z51:

blockZ40-Z53
Encounters for other specific health care (Z40-Z53)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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