2026 ICD-10-CM Diagnosis Code Z98.0Intestinal bypass and anastomosis status
Z98.0 is a billable ICD-10-CM diagnosis code for intestinal bypass and anastomosis status. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). 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: intestinal by-pass. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Implant, device or graft related encounter.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z98.0.
Present on Admission (POA)Billing
Z98.0 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: intestinal by-pass
- History of excision of intestinal structure
- History of gastrointestinal tract anastomosis
- History of gastrointestinal tract bypass
- Intestinal anastomosis present
- Intestinal bypass present
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- intestinal bypass or anastomosis - Z98.0
- Status (post) - See Also: Presence (of);
- anastomosis - Z98.0
- intestinal bypass - Z98.0
- Transposition (congenital) - See Also: Malposition, congenital;
- reversed jejunal (for bypass) (status) - Z98.0
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Presence(of)
- intestinal bypass or anastomosis
- Status(post)
- anastomosis
- Status(post)
- intestinal bypass
- Status(post)
- reversed jejunal transposition (for bypass)
- Transposition(congenital)
- reversed jejunal (for bypass) (status)
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
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Convert Z98.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z98.0Overview
Is Z98.0 (Other postprocedural states) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report intestinal bypass and anastomosis status on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Can Z98.0 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because intestinal bypass and anastomosis status describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z98.0 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 intestinal bypass and anastomosis status on inpatient claims.
What is the ICD-9 equivalent of Z98.0?
Under the General Equivalence Mappings, intestinal bypass and anastomosis status converts to ICD-9-CM V45.3 (intestinal bypass status). The mapping is a direct match.
