2026 ICD-10-CM Diagnosis Code Z85.028Personal history of other malignant neoplasm of stomach
Z85.028 is a billable ICD-10-CM diagnosis code for personal history of other malignant neoplasm of stomach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 826 through 830, 843 through 845. The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. Coders also document this condition as H/O upper GIT neoplasm. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Personal history of malignant neoplasm.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z85.028.
Present on Admission (POA)Billing
Z85.028 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- H/O upper GIT neoplasm
- History of carcinoma of stomach
- History of malignant neoplasm of stomach
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Conditions classifiable to C16
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- History
- personal (of) - See Also: History, family (of);
- malignant neoplasm (of) - Z85.9
- stomach NEC - Z85.028
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- History
- personal (of)
- malignant neoplasm (of)
- stomach NEC
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Stomach Cancer
The stomach is an organ between the esophagus and the small intestine. It mixes food with stomach acid and helps digest protein. Stomach cancer mostly affects older people - two-thirds of people who have it are over age 65. Your risk of getting it is also higher if you:
The full article covers:
- What is Stomach Cancer?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z85.028 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z85.028Overview
Is Z85.028 (Personal history of malignant neoplasm of stomach) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report personal history of other malignant neoplasm of stomach on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does Z85.028 group to?
On inpatient claims, personal history of other malignant neoplasm of stomach maps to MS-DRG 826, 827, 828, 829, 830, 843, 844, 845, with relative weights from 0.8516 to 4.6778 depending on complications. Higher weights mean higher Medicare reimbursement.
Can Z85.028 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because personal history of other malignant neoplasm of stomach describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z85.028 exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for personal history of other malignant neoplasm of stomach on inpatient claims.
What is the ICD-9 equivalent of Z85.028?
Under the General Equivalence Mappings, personal history of other malignant neoplasm of stomach converts to ICD-9-CM V10.04 (hx of gastric malignancy). The mapping is approximate, so confirm the match fits the documentation.
