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ICD-10-CM Z08: Encounter for follow-up examination after completed treatment for malignant neoplasm

Z08 is the billable ICD-10-CM code for encounter for follow-up examination after completed treatment for malignant neoplasm, in category Z08 (Encounter for follow-up examination after completed treatment for malignant neoplasm) of the Persons encountering health services for examinations section. As a principal diagnosis it groups to MS-DRG 826 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCC, MS-DRG 827 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CC, MS-DRG 828 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCC (MDC 17 MDC 17: Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms). 21 LCD billing and coding articles list it as covered.

Compiled from CMS files by the QuickIntell RCM Editorial Team · Data effective · Method: reference methodology · Report a data correction

Data currency: ICD-10-CM code descriptions: FY2027 (effective October 1, 2026); IPPS Table 5 (MS-DRG weights): v44 FY2027 (final rule + CN3) (effective October 1, 2026); ICD-10-CM to HCC mapping: PY2027 initial ICD-10-CM mappings (dates of service 2026) (payment year 2027); Medicare Coverage Database billing and coding articles: MCD release October 8, 2026 (effective October 4, 2026). Next CMS release: FY2028 code files, effective October 1, 2027 for the ICD-10-CM code descriptions; FY2028 final rule (August 2027), effective October 1, 2027; an April 1 interim grouper update when CMS issues one for the IPPS Table 5 (MS-DRG weights); PY2028 advance notice (February 2027) and the PY2027 midyear final mapping (spring 2027) for the ICD-10-CM to HCC mapping; weekly, every Thursday for the Medicare Coverage Database billing and coding articles.

Code
Z08
billable FY2027 ICD-10-CM code
Category
Z08 Encounter for follow-up examination after completed treatment for malignant neoplasm
Chapter
21: Factors influencing health status and contact with health services (Z00-Z99)
CC/MCC (MS-DRG v44)
Neither
CMS-HCC V28
Not mapped
POA reporting
Exempt

Tabular list notes for Z08

Inclusion terms
  • Medical surveillance following completed treatment
Excludes1 (never coded together)
  • aftercare following medical care (Z43-Z49, Z51)
Use additional code
  • code to identify any acquired absence of organs (Z90.-)
  • code to identify the personal history of malignant neoplasm (Z85.-)

MS-DRG grouping when Z08 is the principal diagnosis

MS-DRG v44 groups for Z08 as principal diagnosis
MDCMS-DRGs
17 MDC 17: Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms826827828829830837838839846847848

The final group also depends on procedures, secondary diagnoses and discharge status; the MS-DRG lookup for Z08 shows the full grouping logic.

CC/MCC status and inpatient edits

Z08 is neither a CC nor an MCC under MS-DRG v44, so as a secondary diagnosis it does not raise the MS-DRG severity level. Check Z08 against a principal diagnosis.

  • Present on admission: exempt from POA indicator reporting (FY2027 exempt list).
  • Medicare Code Editor: unacceptable principal diagnosis.

CMS-HCC V28 risk adjustment

Z08 does not map to a payment HCC in the PY2027 CMS-HCC V28 model, so on its own it does not change a Medicare Advantage risk score.

LCD billing and coding articles that list Z08

21 current Medicare billing and coding articles list Z08 among the diagnoses that support medical necessity for the services they cover.

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Frequently asked questions

What does ICD-10-CM Z08 mean?

Z08 means encounter for follow-up examination after completed treatment for malignant neoplasm. The tabular list also files these terms under it: Medical surveillance following completed treatment. It is one of 1 billable codes under Z08, encounter for follow-up examination after completed treatment for malignant neoplasm.

What can't be coded with Z08?

Excludes1 at Z08: aftercare following medical care (Z43-Z49, Z51). These are never reported together with Z08.

What else is coded with Z08?

The tabular instructions at Z08: code to identify any acquired absence of organs (Z90.-); code to identify the personal history of malignant neoplasm (Z85.-).

Which MS-DRG does Z08 group to?

As the principal diagnosis, Z08 groups to MS-DRG 826 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCC, MS-DRG 827 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CC, MS-DRG 828 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCC (MDC 17 MDC 17: Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms) under MS-DRG v44, before procedures and secondary diagnoses are applied.

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.

Disclaimer

The descriptor and notes are reproduced from the FY2027 ICD-10-CM files; MS-DRG, CC/MCC and HCC facts come from the CMS FY2027 and PY2027 tables. Code from the medical record and the ICD-10-CM Official Guidelines. Not legal, clinical or billing advice.

Found a figure that does not match the CMS file? Report a data correction with the CMS file and the value you expected; the request reaches the editorial team through the contact form.