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Z98.83

Z98.83: Filtering (vitreous) bleb after glaucoma surgery status

Billable / specific codeICD-10-CMPOA exempt

Z98.83 is a billable, specific ICD-10-CM code for filtering (vitreous) bleb after glaucoma surgery status. It is valid for submission on a claim.

Check Z98.83 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.

  • Inflammation (infection) of postprocedural bleb (H59.4-)

Excludes2 inherited from the categories above Z98.83

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

Other codes that can never be billed with Z98.83

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • H59.4Inflammation (infection) of postprocedural bleb

Risk adjustment

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

Medicare coverage

Z98.83 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56548Billing and Coding: Corneal Pachymetry
  • A56816Billing and Coding: Computerized Corneal Topography

Alphabetic index entries that lead here

  • Bleb›filtering, after glaucoma surgery(vitreous)
  • Status›bleb, filtering, after glaucoma surgery(vitreous)
  • Status›filtering bleb after glaucoma surgery(vitreous)

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.