2026 ICD-10-CM Diagnosis Code Z98.84Bariatric surgery status
Z98.84 is a billable ICD-10-CM diagnosis code for bariatric surgery 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. 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 Z98.84.
Present on Admission (POA)Billing
Z98.84 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.
- Complication following bariatric surgery
- Finding of gastrointestinal device
- Gastric band attached
- Generalized excess and redundant skin following bariatric surgery
- History of bariatric surgical procedure
- History of bypass of stomach
- History of gastrointestinal tract anastomosis
- History of gastrointestinal tract bypass
- History of laparoscopic adjustable gastric banding
- History of laparoscopy
- Redundant skin
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Gastric banding status
- Gastric bypass status for obesity
- Obesity surgery status
Type 1 Excludes
- bariatric surgery status complicating pregnancy, childbirth, or the puerperium O99.84
Type 2 Excludes
- intestinal bypass and anastomosis status Z98.0
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.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
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.
- Status (post) - See Also: Presence (of);
- bariatric surgery - Z98.84
- gastric banding - Z98.84
- gastric bypass for obesity - Z98.84
- obesity surgery - Z98.84
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Status(post)
- bariatric surgery
- Status(post)
- gastric banding
- Status(post)
- gastric bypass for obesity
- Status(post)
- obesity surgery
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Bariatric Surgery Status
an indication of whether a patient has received or will receive bariatric surgery.
Patient EducationClinical
Weight Loss Surgery
Weight loss surgery helps people with extreme obesity to lose weight. It may be an option if you cannot lose weight through diet and exercise or have serious health problems caused by obesity.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z98.84 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z98.84Overview
Is Z98.84 (Other specified postprocedural states) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report bariatric surgery status on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Can Z98.84 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because bariatric surgery status describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z98.84 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 bariatric surgery status on inpatient claims.
What is the ICD-9 equivalent of Z98.84?
Under the General Equivalence Mappings, bariatric surgery status converts to ICD-9-CM V45.86 (bariatric surgery status). The mapping is a direct match.
