Z09Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm

Z09 is the ICD-10-CM diagnosis code for encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm. It belongs to block Z00-Z13 (persons encountering health services for examinations) and chapter 21 (factors influencing health status and contact with health services). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Don't report Z09 together with the conditions in its Excludes1 note: aftercare following medical care (Z43-Z49, Z51), surveillance of contraception (Z30.4-) and surveillance of prosthetic and other medical devices (Z44-Z46).

Use an additional code to identify any applicable history of disease code (Z86.-, Z87.-).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.

It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as V67.00 (follow-up examination, following surgery, unspecified), V67.09 (follow-up examination, following other surgery), V67.1 (follow-up examination, following radiotherapy) and 7 more.