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Z51Non-billableSave

Z51 - Encounter for other aftercare and medical care

ICD-10-CM Chapter 21: Factors influencing health status and contact with health services · Z40-Z53 Encounters for other specific health care (Z40-Z53) · Top-level category · FY2027

Coding Guidance

Z51 is a non-billable heading. Report one of the 6 more specific codes below.

Includes, Excludes and Coding Notes

Excludes 1 — Not Coded HereFrom Z51

Mutually exclusive: these conditions are never reported together with this code.

  • follow-up examination after treatment (Z08-Z09)
Code AlsoFrom Z51

Report an additional code when both conditions apply.

  • condition requiring care
Inclusion TermsFrom Z40-Z53 Encounters for other specific health care (Z40-Z53)

Terms the ICD-10-CM tabular lists under this block.

  • 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
Excludes 2 — Not Included HereFrom Z40-Z53 Encounters for other specific health care (Z40-Z53)

Not part of this code; report both codes when the patient has both conditions.

  • follow-up examination for medical surveillance after treatment (Z08-Z09)
NotesFrom Chapter Z00-Z99

Instructional notes from the ICD-10-CM tabular list.

  • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
  • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
  • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

More Specific Codes (6)

Z51.0Encounter for antineoplastic radiation therapy→Z51.1Encounter for antineoplastic chemotherapy and immunotherapy→Z51.5Encounter for palliative care→Z51.6Encounter for desensitization to allergens→Z51.8Encounter for other specified aftercare→Z51.AEncounter for sepsis aftercare→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with Z51.