Alphabetic Index FY2027

Z09

Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm

FY2027Chapter 21: Factors influencing health status and contact with health services/Z00–Z13 Persons encountering health services for examinations

BillableComplete code, valid to report

Z09 is a billable ICD-10-CM diagnosis code for encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm. It is part of the FY2027 code set, effective October 1, 2026. The Alphabetic Index lists it under 13 entries. Its coding notes include a Use additional code instruction, 3 Excludes1 entries and 1 Excludes2 entry.

Guidelines tip

From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.

Follow-up codes mean the condition has been fully treated and no longer exists. If it has recurred, the diagnosis code is assigned instead.

Guidelines I.C.21.c.8Follow-up Z codes (Z08, Z09)Read the official text

Use additional code

Add the listed code as a secondary code, if known.

This code
  • code to identify any applicable history of disease code (Z86.-, Z87.-)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • aftercare following medical care (Z43-Z49, Z51)
  • surveillance of contraception (Z30.4-)
  • surveillance of prosthetic and other medical devices (Z44-Z46)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (1 note)
Inherited from Z00–Z13 Persons encountering health services for examinations
  • examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)

Inclusion terms

Conditions classified to this code.

This code
  • Medical surveillance following completed treatment

Notes

Also from chapter/block level (4 notes)
Inherited from Z00–Z13 Persons encountering health services for examinations
  • Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.
Inherited from Chapter 21 Factors influencing health status and contact with health services
  • 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.

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 13 entries

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