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Z98.84

Z98.84: Bariatric surgery status

Billable / specific codeICD-10-CMPOA exempt

Z98.84 is a billable, specific ICD-10-CM code for bariatric surgery status. It is valid for submission on a claim.

Check Z98.84 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • bariatric surgery status complicating pregnancy, childbirth, or the puerperium (O99.84)

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • intestinal bypass and anastomosis status (Z98.0)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Gastric banding status
  • Gastric bypass status for obesity
  • Obesity surgery status

Excludes2 inherited from the categories above Z98.84

Not part of this code, but both may be coded when both are present.

Written on Z98: Other postprocedural states

  • aftercare (Z43-Z49, Z51)
  • follow-up medical care (Z08-Z09)
  • Fontan related circulation (I27.84-)
  • postprocedural complication - see Alphabetical Index

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Z98.84 is named in 7 Medicare coverage policies: 7 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56416Billing and Coding: Assays for Vitamins and Metabolic Function
  • A56841Billing and Coding: Vitamin D; 25 hydroxy, includes fraction(s), if performed
  • A57484Billing and Coding: Vitamin D Assay Testing
  • A58801Billing and Coding: Pharmacogenomics Testing

Alphabetic index entries that lead here

  • Status›bariatric surgery
  • Status›gastric banding
  • Status›gastric bypass for obesity
  • Status›obesity surgery

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Z98.8

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.